ATXMEGA64D3-15AT1 [MICROCHIP]
IC MCU 8BIT 64KB FLASH 64TQFP;型号: | ATXMEGA64D3-15AT1 |
厂家: | MICROCHIP |
描述: | IC MCU 8BIT 64KB FLASH 64TQFP |
文件: | 总86页 (文件大小:3658K) |
中文: | 中文翻译 | 下载: | 下载PDF数据表文档文件 |
ATxmega64D3 Automotive
8/16-bit Atmel AVR XMEGA D3 Microcontroller
DATASHEET
Features
● High-performance, low-power Atmel® AVR® XMEGA® 8/16-bit Microcontroller
● Nonvolatile program and data memories
● 64Kbytes of in-system self-programmable flash
● 4Kbytes boot section
● 2Kbytes EEPROM
● 4Kbytes internal SRAM
● Peripheral features
● Four-channel event system
● Five 16-bit timer/counters
● Four timer/counters with four output compare or input capture channels
● One timer/counter with two output compare or input capture channels
● High resolution extension on two timer/counters
● Advanced waveform extension (AWeX) on one timer/counter
● Three USARTs with IrDA support for one USART
● Two two-wire interfaces with dual address match (I2C and SMBus compatible)
● Two serial peripheral interfaces (SPIs)
● CRC-16 (CRC-CCITT) and CRC-32 (IEEE®802.3) generator
● 16-bit real time counter (RTC) with separate oscillator
● One sixteen-channel, 12-bit, 300ksps Analog to Digital Converter
● Two Analog Comparators with window compare function, and current sources
● External interrupts on all general purpose I/O pins
● Programmable watchdog timer with separate on-chip ultra low power oscillator
● Atmel QTouch® library support
● Capacitive touch buttons, sliders and wheels
● Special microcontroller features
● Power-on reset and programmable brown-out detection
● Internal and external clock options with PLL and prescaler
● Programmable multilevel interrupt controller
● Five sleep modes
● Programming and debug interface
● PDI (program and debug interface)
● I/O and packages
● 50 programmable I/O pins
● 64-lead TQFP
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● Operating voltage
● 2.7 – 3.6V
● Operating frequency
● 0 – 32MHz
Typical applications
● Capacitive touch sensing for buttons, sliders and wheels in
● centre stacks
● overhead modules
● dome modules
● general switch panels
● Automotive led control
● Low power key fob controller
● Motor control
● Sensor control
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1.
Pinout/Block Diagram
Figure 1-1. Block Diagram and Pinout
Power
Programming, debug, test
Ground
Digital function
External clock/Crystal pins
General Purpose I/O
Analog function/Oscillators
Port R
PA3
1
2
3
4
48
47
46
45
PF2
PF1
PF0
VCC
XOSC
PA4
PA5
PA6
DATA BUS
OSC/CLK
Control
Internal
oscillators
Watchdog
oscillator
Power
Supervision
AREF
ADC
Sleep
Controller
Real Time
Counter
Watchdog
Timer
Reset
Controller
PA7
PB0
PB1
5
6
7
44
43
42
GND
PE7
PE6
AC0:1
Event System
Controller
Prog/Debug
Interface
CRC
OCD
Interrupt
Controller
BUS
matrix
PB2
PB3
PB4
PB5
PB6
PB7
GND
VCC
PC0
8
41
40
39
38
37
36
35
34
33
PE5
PE4
PE3
PE2
PE1
PE0
VCC
GND
PD7
AREF
Internal
references
CPU
9
SRAM
10
11
12
13
14
15
16
FLASH
EEPROM
DATA BUS
EVENT ROUTING NETWORK
Port C
Port D
Port E
Port F
Note:
1. For full details on pinout and alternate pin functions refer to Section 27. “Pinout and Pin Functions” on page 45.
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2.
Overview
The Atmel AVR XMEGA is a family of low power, high performance, and peripheral rich 8/16-bit microcontrollers based on
the AVR enhanced RISC architecture. By executing instructions in a single clock cycle, the AVR XMEGA devices achieve
CPU throughput approaching one million instructions per second (MIPS) per megahertz, allowing the system designer to
optimize power consumption versus processing speed.
The AVR CPU combines a rich instruction set with 32 general purpose working registers. All 32 registers are directly
connected to the arithmetic logic unit (ALU), allowing two independent registers to be accessed in a single instruction,
executed in one clock cycle. The resulting architecture is more code efficient while achieving throughput many times faster
than conventional single-accumulator or CISC based microcontrollers.
The XMEGA D3 devices provide the following features: in-system programmable flash with read-while-write capabilities;
internal EEPROM and SRAM; four-channel event system and programmable multilevel interrupt controller, 50 general
purpose I/O lines, 16-bit real-time counter (RTC); five, 16-bit timer/counters with compare and PWM channels; three
USARTs; two two-wire serial interfaces (TWIs); two serial peripheral interfaces (SPIs); one sixteen-channel, 12-bit ADC with
programmable gain; two analog comparators (ACs) with window mode; programmable watchdog timer with separate internal
oscillator; accurate internal oscillators with PLL and prescaler; and programmable brown-out detection.
The program and debug interface (PDI), a fast, two-pin interface for programming and debugging, is available.
The ATxmega64D3 devices have five software selectable power saving modes. The idle mode stops the CPU while allowing
the SRAM, event system, interrupt controller, and all peripherals to continue functioning. The power-down mode saves the
SRAM and register contents, but stops the oscillators, disabling all other functions until the next TWI, or pin-change interrupt,
or reset. In power-save mode, the asynchronous real-time counter continues to run, allowing the application to maintain a
timer base while the rest of the device is sleeping. In standby mode, the external crystal oscillator keeps running while the
rest of the device is sleeping. This allows very fast start-up from the external crystal, combined with low power consumption.
In extended standby mode, both the main oscillator and the asynchronous timer continue to run. To further reduce power
consumption, the peripheral clock to each individual peripheral can optionally be stopped in active mode and idle sleep
mode.
Atmel offers a free QTouch library for embedding capacitive touch buttons, sliders and wheels functionality into AVR
microcontrollers.
The devices are manufactured using Atmel high-density, nonvolatile memory technology. The program flash memory can be
reprogrammed in-system through the PDI. A boot loader running in the device can use any interface to download the
application program to the flash memory. The boot loader software in the boot flash section will continue to run while the
application flash section is updated, providing true read-while-write operation. By combining an 8/16-bit RISC CPU with in-
system, self-programmable flash, the AVR XMEGA is a powerful microcontroller family that provides a highly flexible and
cost effective solution for many embedded applications.
All AVR XMEGA devices are supported with a full suite of program and system development tools, including: C compilers,
macro assemblers, program debugger/simulators, programmers, and evaluation kits.
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2.1
Block Diagram
Figure 2-1. XMEGA D3 Block Diagram
PR[0..1]
XTAL1
Power
Programming debug
Ground
External clock/Crystal pins
General Purpose I/O
Digital function
Analog function/Oscillators
XTAL2
Oscillator
Circuits/
Clock
Real Time
Counter
Watchdog
Oscillator
PORT R (2)
Generation
DATA BUS
Watchdog
Timer
ACA
Event System
Controller
Oscillator
Control
Sleep
Controller
Power
Supervision
POR/BOD &
Reset
PA[0..7]
VCC
GND
PORT A (8)
ADCA
SRAM
BUS Matrix
AREFA
VCC/10
Int. Refs
RESET/
PDI_CLK
Interrupt
Controller
Prog/Debug
Controller
PDI
PDI_DATA
CPU
CRC
OCD
AREFB
NVM Controller
PB[0..7]
PORT B (8)
TCF0
PF[0..7]
Flash
EEPROM
DATA BUS
EVENT ROUTING NETWORK
To Clock
Generator
PORT C (8)
PORT D (8)
PORT E (8)
TOSC1
TOSC2
PC[0..7]
PD[0..7]
PE[0..7]
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3.
Resources
A comprehensive set of development tools, application notes and datasheets are available for download on
www.atmel.com/avr.
3.1
3.2
Data Retention
Reliability Qualification results show that the projected data retention failure rate is much less than 1 PPM over 20 years at
105°C.
Automotive Quality Grade
The Atmel® ATxmega64D3 have been developed and manufactured according to the most stringent requirements of the
international standard ISO-TS-16949. This data sheet contains limit values extracted from the results of extensive
characterization (Temperature and Voltage).
The quality and reliability of the Atmel ATxmega64D3 has been verified during regular product qualification as per AEC-
Q100 grade 2 (–40°C to +105°C).
3.3
Recommended Reading
●
●
Atmel AVR XMEGA D manual
XMEGA application notes
This device data sheet only contains part specific information with a short description of each peripheral and module. The
XMEGA D manual describes the modules and peripherals in depth. The XMEGA application notes contain example code
and show applied use of the modules and peripherals.
All documentation are available from www.atmel.com/avr.
4.
Capacitive Touch Sensing
The Atmel QTouch library provides a simple to use solution to realize touch sensitive interfaces on most Atmel AVR
microcontrollers. The patented charge-transfer signal acquisition offers robust sensing and includes fully debounced
reporting of touch keys and includes Adjacent Key Suppression® (AKS®) technology for unambiguous detection of key
events. The QTouch library includes support for the QTouch and Atmel QMatrix acquisition methods.
Touch sensing can be added to any application by linking the appropriate Atmel QTouch library for the AVR microcontroller.
This is done by using a simple set of APIs to define the touch channels and sensors, and then calling the touch sensing
API’s to retrieve the channel information and determine the touch sensor states.
The QTouch library is FREE and downloadable from the Atmel website at the following location:
http://www.atmel.com/tools/qtouchlibrary.aspx.
For implementation details and other information, refer to the QTouch library user guide - also available for download from
the Atmel website.
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5.
AVR CPU
5.1
Features
●
8/16-bit, high-performance Atmel AVR RISC CPU
●
●
137 instructions
Hardware multiplier
●
●
●
●
●
●
32x8-bit registers directly connected to the ALU
Stack in RAM
Stack pointer accessible in I/O memory space
True 16/24-bit access to 16/24-bit I/O registers
Efficient support for 8-, 16- and 32-bit arithmetic
Configuration change protection of system-critical features
5.2
5.3
Overview
All Atmel AVR XMEGA devices use the 8/16-bit AVR CPU. The main function of the CPU is to execute the code and perform
all calculations. The CPU is able to access memories, perform calculations, control peripherals, and execute the program in
the flash memory. Interrupt handling is described in a separate section, refer to Section 12. “Interrupts and Programmable
Multilevel Interrupt Controller” on page 24.
Architectural Overview
In order to maximize performance and parallelism, the AVR CPU uses a Harvard architecture with separate memories and
buses for program and data. Instructions in the program memory are executed with single-level pipelining. While one
instruction is being executed, the next instruction is pre-fetched from the program memory. This enables instructions to be
executed on every clock cycle. For details of all AVR instructions, refer to www.atmel.com/avr.
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Figure 5-1. Block Diagram of the AVR CPU Architecture
Register File
Program
Counter
R31 (ZH)
R29 (YH)
R27 (XH)
R25
R30 (ZL)
R28 (YL)
R26 (XL)
R24
R23
R22
R21
R20
R19
R18
Flash Program
Memory
R17
R15
R13
R16
R14
R12
R11
R10
R9
R8
R7
R6
R5
R4
R3
R1
R2
R0
Instruction
Register
Instruction
Decode
Data Memory
Stack
Pointer
Stack
Pointer
ALU
The arithmetic logic unit (ALU) supports arithmetic and logic operations between registers or between a constant and a
register. Single-register operations can also be executed in the ALU. After an arithmetic operation, the status register is
updated to reflect information about the result of the operation.
The ALU is directly connected to the fast-access register file. The 32 8-bit general purpose working registers all have single
clock cycle access time allowing single-cycle arithmetic logic unit (ALU) operation between registers or between a register
and an immediate. Six of the 32 registers can be used as three 16-bit address pointers for program and data space
addressing, enabling efficient address calculations.
The memory spaces are linear. The data memory space and the program memory space are two different memory spaces.
The data memory space is divided into I/O registers, and SRAM. In addition, the EEPROM can be memory mapped in the
data memory.
All I/O status and control registers reside in the lowest 4KB addresses of the data memory. This is referred to as the I/O
memory space. The lowest 64 addresses can be accessed directly, or as the data space locations from 0x00 to 0x3F. The
rest is the extended I/O memory space, ranging from 0x0040 to 0x0FFF. I/O registers here must be accessed as data space
locations using load (LD/LDS/LDD) and store (ST/STS/STD) instructions.
The SRAM holds data. Code execution from SRAM is not supported. It can easily be accessed through the five different
addressing modes supported in the AVR architecture. The first SRAM address is 0x2000.
Data addresses 0x1000 to 0x1FFF are reserved for memory mapping of EEPROM.
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The program memory is divided in two sections, the application program section and the boot program section. Both
sections have dedicated lock bits for write and read/write protection. The SPM instruction that is used for self-programming
of the application flash memory must reside in the boot program section. The application section contains an application
table section with separate lock bits for write and read/write protection. The application table section can be used for safe
storing of nonvolatile data in the program memory.
5.4
ALU - Arithmetic Logic Unit
The arithmetic logic unit (ALU) supports arithmetic and logic operations between registers or between a constant and a
register. Single-register operations can also be executed. The ALU operates in direct connection with all 32 general purpose
registers. In a single clock cycle, arithmetic operations between general purpose registers or between a register and an
immediate are executed and the result is stored in the register file. After an arithmetic or logic operation, the status register is
updated to reflect information about the result of the operation.
ALU operations are divided into three main categories – arithmetic, logical, and bit functions. Both 8- and 16-bit arithmetic is
supported, and the instruction set allows for efficient implementation of 32-bit aritmetic. The hardware multiplier supports
signed and unsigned multiplication and fractional format.
5.4.1 Hardware Multiplier
The multiplier is capable of multiplying two 8-bit numbers into a 16-bit result. The hardware multiplier supports different
variations of signed and unsigned integer and fractional numbers:
●
●
●
●
●
●
Multiplication of unsigned integers
Multiplication of signed integers
Multiplication of a signed integer with an unsigned integer
Multiplication of unsigned fractional numbers
Multiplication of signed fractional numbers
Multiplication of a signed fractional number with an unsigned one
A multiplication takes two CPU clock cycles.
5.5
Program Flow
After reset, the CPU starts to execute instructions from the lowest address in the flash program memory ‘0.’ The program
counter (PC) addresses the next instruction to be fetched.
Program flow is provided by conditional and unconditional jump and call instructions capable of addressing the whole
address space directly. Most AVR instructions use a 16-bit word format, while a limited number use a 32-bit format.
During interrupts and subroutine calls, the return address PC is stored on the stack. The stack is allocated in the general
data SRAM, and consequently the stack size is only limited by the total SRAM size and the usage of the SRAM. After reset,
the stack pointer (SP) points to the highest address in the internal SRAM. The SP is read/write accessible in the I/O memory
space, enabling easy implementation of multiple stacks or stack areas. The data SRAM can easily be accessed through the
five different addressing modes supported in the AVR CPU.
5.6
Status Register
The status register (SREG) contains information about the result of the most recently executed arithmetic or logic instruction.
This information can be used for altering program flow in order to perform conditional operations. Note that the status
register is updated after all ALU operations, as specified in the instruction set reference. This will in many cases remove the
need for using the dedicated compare instructions, resulting in faster and more compact code.
The status register is not automatically stored when entering an interrupt routine nor restored when returning from an
interrupt. This must be handled by software.
The status register is accessible in the I/O memory space.
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5.7
Stack and Stack Pointer
The stack is used for storing return addresses after interrupts and subroutine calls. It can also be used for storing temporary
data. The Stack Pointer (SP) register always points to the top of the stack. It is implemented as two 8-bit registers that are
accessible in the I/O memory space. Data are pushed and popped from the stack using the PUSH and POP instructions.
The stack grows from a higher memory location to a lower memory location. This implies that pushing data onto the stack
decreases the SP, and popping data off the stack increases the SP. The SP is automatically loaded after reset, and the initial
value is the highest address of the internal SRAM. If the SP is changed, it must be set to point above address 0x2000, and it
must be defined before any subroutine calls are executed or before interrupts are enabled.
During interrupts or subroutine calls, the return address is automatically pushed on the stack. The return address can be two
or three bytes, depending on program memory size of the device. For devices with 128KB or less of program memory, the
return address is two bytes, and hence the stack pointer is decremented/incremented by two. For devices with more than
128KB of program memory, the return address is three bytes, and hence the SP is decremented/incremented by three. The
return address is popped off the stack when returning from interrupts using the RETI instruction, and from subroutine calls
using the RET instruction.
The SP is decremented by one when data are pushed on the stack with the PUSH instruction, and incremented by one when
data is popped off the stack using the POP instruction.
To prevent corruption when updating the stack pointer from software, a write to SPL will automatically disable interrupts for
up to four instructions or until the next I/O memory write.
After reset the stack pointer is initialized to the highest address of the SRAM. See Table 6-3 on page 13.
5.8
Register file
The register file consists of 32 8-bit general purpose working registers with single clock cycle access time. The register file
supports the following input/output schemes:
●
●
●
●
One 8-bit output operand and one 8-bit result input
Two 8-bit output operands and one 8-bit result input
Two 8-bit output operands and one 16-bit result input
One 16-bit output operand and one 16-bit result input
Six of the 32 registers can be used as three 16-bit address register pointers for data space addressing, enabling efficient
address calculations. One of these address pointers can also be used as an address pointer for lookup tables in flash
program memory.
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6.
Memories
6.1
Features
●
Flash program memory
●
●
●
●
●
●
●
●
One linear address space
In-system programmable
Self-programming and boot loader support
Application section for application code
Application table section for application code or data storage
Boot section for application code or boot loader code
Separate read/write protection lock bits for all sections
Built in fast CRC check of a selectable flash program memory section
●
Data memory
●
●
●
●
One linear address space
Single-cycle access from CPU
SRAM
EEPROM
●
●
Byte and page accessible
Optional memory mapping for direct load and store
●
I/O memory
●
●
Configuration and status registers for all peripherals and modules
Four bit-accessible general purpose registers for global variables or flags
●
●
Production signature row memory for factory programmed data
●
●
●
ID for each microcontroller device type
Serial number for each device
Calibration bytes for factory calibrated peripherals
User signature row
●
●
●
One flash page in size
Can be read and written from software
Content is kept after chip erase
6.2
Overview
The Atmel AVR architecture has two main memory spaces, the program memory and the data memory. Executable code
can reside only in the program memory, while data can be stored in the program memory and the data memory. The data
memory includes the internal SRAM, and EEPROM for nonvolatile data storage. All memory spaces are linear and require
no memory bank switching. Nonvolatile memory (NVM) spaces can be locked for further write and read/write operations.
This prevents unrestricted access to the application software.
A separate memory section contains the fuse bytes. These are used for configuring important system functions, and can
only be written by an external programmer.
The available memory size configurations are shown in Section 33. “Ordering Information” on page 83. In addition, each
device has a Flash memory signature row for calibration data, device identification, serial number etc.
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6.3
Flash Program Memory
The Atmel AVR XMEGA devices contain on-chip, in-system reprogrammable flash memory for program storage. The flash
memory can be accessed for read and write from an external programmer through the PDI or from application software
running in the device.
All AVR CPU instructions are 16 or 32 bits wide, and each flash location is 16 bits wide. The flash memory is organized in
two main sections, the application section and the boot loader section. The sizes of the different sections are fixed, but
device-dependent. These two sections have separate lock bits, and can have different levels of protection. The store
program memory (SPM) instruction, which is used to write to the flash from the application software, will only operate when
executed from the boot loader section.
The application section contains an application table section with separate lock settings. This enables safe storage of
nonvolatile data in the program memory.
Table 6-1. Flash Program Memory (Hexadecimal Address)
Word address
ATxmega
64D3
0
Application section (64K)
...
77FF
7800
7FFF
8000
87FF
Application table section (4K)
Boot section (4K)
6.3.1 Application Section
The Application section is the section of the flash that is used for storing the executable application code. The protection
level for the application section can be selected by the boot lock bits for this section. The application section can not store
any boot loader code since the SPM instruction cannot be executed from the application section.
6.3.2 Application Table Section
The application table section is a part of the application section of the flash memory that can be used for storing data. The
size is identical to the boot loader section. The protection level for the application table section can be selected by the boot
lock bits for this section. The possibilities for different protection levels on the application section and the application table
section enable safe parameter storage in the program memory. If this section is not used for data, application code can
reside here.
6.3.3 Boot Loader Section
While the application section is used for storing the application code, the boot loader software must be located in the boot
loader section because the SPM instruction can only initiate programming when executing from this section. The SPM
instruction can access the entire flash, including the boot loader section itself. The protection level for the boot loader section
can be selected by the boot loader lock bits. If this section is not used for boot loader software, application code can be
stored here.
6.3.4 Production Signature Row
The production signature row is a separate memory section for factory programmed data. It contains calibration data for
functions such as oscillators and analog modules. Some of the calibration values will be automatically loaded to the
corresponding module or peripheral unit during reset. Other values must be loaded from the signature row and written to the
corresponding peripheral registers from software. For details on calibration conditions, refer to Section 30. “Electrical
Characteristics” on page 55.
The production signature row also contains an ID that identifies each microcontroller device type and a serial number for
each manufactured device. The serial number consists of the production lot number, wafer number, and wafer coordinates
for the device. The device ID for the available devices is shown in Table 6-2.
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The production signature row cannot be written or erased, but it can be read from application software and external
programmers.
Table 6-2. Device ID Bytes
Device
Device ID bytes
Byte 2
4A
Byte 1
96
Byte 0
1E
ATxmega64D3
6.3.5 User Signature Row
The user signature row is a separate memory section that is fully accessible (read and write) from application software and
external programmers. It is one flash page in size, and is meant for static user parameter storage, such as calibration data,
custom serial number, identification numbers, random number seeds, etc. This section is not erased by chip erase
commands that erase the flash, and requires a dedicated erase command. This ensures parameter storage during multiple
program/erase operations and on-chip debug sessions.
6.4
Fuses and Lock Bits
The fuses are used to configure important system functions, and can only be written from an external programmer. The
application software can read the fuses. The fuses are used to configure reset sources such as brownout detector,
watchdog, and start-up configuration.
The lock bits are used to set protection levels for the different flash sections (that is, if read and/or write access should be
blocked). Lock bits can be written by external programmers and application software, but only to stricter protection levels.
Chip erase is the only way to erase the lock bits. To ensure that flash contents are protected even during chip erase, the lock
bits are erased after the rest of the flash memory has been erased.
An unprogrammed fuse or lock bit will have the value one, while a programmed fuse or lock bit will have the value zero.
Both fuses and lock bits are reprogrammable like the flash program memory.
6.5
Data Memory
The data memory contains the I/O memory, internal SRAM, optionally memory mapped EEPROM, and external memory if
available. The data memory is organized as one continuous memory section, see Figure 6-3 on page 13. To simplify
development, I/O Memory, EEPROM and SRAM will always have the same start addresses for all Atmel AVR XMEGA
devices.
Table 6-3. Data Memory Map (Hexadecimal Address)
Byte Address
ATxmega64D3
0
I/O registers (4K)
FFF
1000
17FF
EEPROM (2K)
RESERVED
2000
2FFF
Internal SRAM (4K)
6.6
EEPROM
All devices have EEPROM for nonvolatile data storage. It is either addressable in a separate data space (default) or memory
mapped and accessed in normal data space. The EEPROM supports both byte and page access. Memory mapped
EEPROM allows highly efficient EEPROM reading and EEPROM buffer loading. When doing this, EEPROM is accessible
using load and store instructions. Memory mapped EEPROM will always start at hexadecimal address 0x1000.
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6.7
I/O Memory
The status and configuration registers for peripherals and modules, including the CPU, are addressable through I/O memory
locations. All I/O locations can be accessed by the load (LD/LDS/LDD) and store (ST/STS/STD) instructions, which are used
to transfer data between the 32 registers in the register file and the I/O memory. The IN and OUT instructions can address
I/O memory locations in the range of 0x00 to 0x3F directly. In the address range 0x00 - 0x1F, single-cycle instructions for
manipulation and checking of individual bits are available. The I/O memory address for all peripherals and modules is shown
in the Section 28. “Peripheral Module Address Map” on page 49.
6.7.1 General Purpose I/O Registers
The lowest 16 I/O memory addresses are reserved as general purpose I/O registers. These registers can be used for storing
global variables and flags, as they are directly bit-accessible using the SBI, CBI, SBIS, and SBIC instructions.
6.8
6.9
Memory Timing
Read and write access to the I/O memory takes one CPU clock cycle. A write to SRAM takes one cycle, and a read from
SRAM takes two cycles. EEPROM page load (write) takes one cycle, and three cycles are required for read. For burst read,
new data are available every second cycle. Refer to the instruction summary for more details on instructions and instruction
timing.
Device ID and Revision
Each device has a three-byte device ID. This ID identifies Atmel as the manufacturer of the device and the device type. A
separate register contains the revision number of the device.
6.10 I/O memory Protection
Some features in the device are regarded as critical for safety in some applications. Due to this, it is possible to lock the I/O
register related to the clock system, the event system, and the advanced waveform extensions. As long as the lock is
enabled, all related I/O registers are locked and they can not be written from the application software. The lock registers
themselves are protected by the configuration change protection mechanism.
6.11 Flash and EEPROM Page Size
The flash program memory and EEPROM data memory are organized in pages. The pages are word accessible for the flash
and byte accessible for the EEPROM.
Table 6-4 shows the Flash Program Memory organization and Program Counter (PC) size. Flash write and erase operations
are performed on one page at a time, while reading the Flash is done one byte at a time. For Flash access the Z-pointer
(Z[m:n]) is used for addressing. The most significant bits in the address (FPAGE) give the page number and the least
significant address bits (FWORD) give the word in the page.
Table 6-4. Number of Words and Pages in the Flash TBD
Devices
PC Size Flash Size Page Size FWORD
FPAGE
Application
Boot
No. of
pages
No. of
pages
[bits]
16
[bytes]
[words]
128
Size
64K
Size
4K
ATxmega64D3
64K + 4K
Z[7:1]
Z[16:8]
256
16
Table 6-5 shows EEPROM memory organization. EEEPROM write and erase operations can be performed one page or one
byte at a time, while reading the EEPROM is done one byte at a time. For EEPROM access the NVM address register
(ADDR[m:n]) is used for addressing. The most significant bits in the address (E2PAGE) give the page number and the least
significant address bits (E2BYTE) give the byte in the page.
Table 6-5. Number of Bytes and Pages in the EEPROM
Devices
EEPROM Size
[bytes]
Page Size
[bytes]
32
E2BYTE
E2PAGE
No. of Pages
ATxmega64D3
2048
ADDR[4:0]
ADDR[10:5]
64
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7.
Event System
7.1
Features
●
●
System for direct peripheral-to-peripheral communication and signaling
Peripherals can directly send, receive, and react to peripheral events
●
●
●
CPU independent operation
100% predictable signal timing
Short and guaranteed response time
●
●
●
Four event channels for up to four different and parallel signal routing configurations
Events can be sent and/or used by most peripherals, clock system, and software
Additional functions include
●
●
Quadrature decoders
Digital filtering of I/O pin state
●
Works in active mode and idle sleep mode
7.2
Overview
The event system enables direct peripheral-to-peripheral communication and signaling. It allows a change in one
peripheral’s state to automatically trigger actions in other peripherals. It is designed to provide a system for short and
predictable response times between peripherals. It allows for autonomous peripheral control and interaction without the use
of interrupts or CPU resources, and is thus a powerful tool for reducing the complexity, size and execution time of application
code. It also allows for synchronized timing of actions in several peripheral modules.
A change in a peripheral’s state is referred to as an event, and usually corresponds to the peripheral’s interrupt conditions.
Events can be directly passed to other peripherals using a dedicated routing network called the event routing network. How
events are routed and used by the peripherals is configured in software.
Figure 7-1 shows a basic diagram of all connected peripherals. The event system can directly connect together analog to
digital converter, analog comparators, I/O port pins, the real-time counter, timer/counters, and IR communication module
(IRCOM). Events can also be generated from software and the peripheral clock.
Figure 7-1. Event System Overview and Connected Peripherals
CPU/
Software
Event Routing Network
clkPER
Prescaler
ADC
Event
Real Time
System
Counter
Controller
AC
Timer/
Counters
Port pins
IRCOM
The event routing network consists of four software-configurable multiplexers that control how events are routed and used.
These are called event channels, and allow for up to four parallel event routing configurations. The maximum routing latency
is two peripheral clock cycles. The event system works in both active mode and idle sleep mode.
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8.
System Clock and Clock Options
8.1
Features
●
●
●
Fast start-up time
Safe run-time clock switching
Internal oscillators:
●
●
●
●
32MHz run-time calibrated and tuneable oscillator
2MHz run-time calibrated oscillator
32.768kHz calibrated oscillator
32kHz ultra low power (ULP) oscillator with 1kHz output
●
●
External clock options
●
●
●
0.4MHz - 16MHz crystal oscillator
32.768kHz crystal oscillator
External clock
PLL with 20MHz - 128MHz output frequency
●
●
Internal and external clock options and 1× to 31× multiplication
Lock detector
●
●
●
●
Clock prescalers with 1× to 2048× division
Fast peripheral clocks running at two and four times the CPU clock
Automatic run-time calibration of internal oscillators
External oscillator and PLL lock failure detection with optional non-maskable interrupt
8.2
Overview
Atmel AVR XMEGA D3 devices have a flexible clock system supporting a large number of clock sources. It incorporates
both accurate internal oscillators and external crystal oscillator and resonator support. A high-frequency phase locked loop
(PLL) and clock prescalers can be used to generate a wide range of clock frequencies. A calibration feature (DFLL) is
available, and can be used for automatic run-time calibration of the internal oscillators to remove frequency drift over voltage
and temperature. An oscillator failure monitor can be enabled to issue a non-maskable interrupt and switch to the internal
oscillator if the external oscillator or PLL fails.
When a reset occurs, all clock sources except the 32kHz ultra low power oscillator are disabled. After reset, the device will
always start up running from the 2MHz internal oscillator. During normal operation, the system clock source and prescalers
can be changed from software at any time.
Figure 8-1 on page 17 presents the principal clock system. Not all of the clocks need to be active at a given time. The clocks
for the CPU and peripherals can be stopped using sleep modes and power reduction registers, as described in Section 9.
“Power Management and Sleep Modes” on page 19.
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Figure 8-1. The Clock System, Clock Sources and Clock Distribution
Real Time
Peripherals
Counter
Non-Volatile
Memory
RAM
AVR CPU
clkPER
clkPER2
clkCPU
clkPER4
System Clock Prescalers
clkSYS
Brown-out
Detector
Watchdog
Timer
clkRTC
System Clock Multiplexer
(SCLKSEL)
RTCSRC
PLL
PLLSRC
XOSCSEL
32kHz
Int. ULP
32.768kHz
Int. OSC
32.768kHz
TOSC
0.4 - 16MHz
XTAL
32MHz
Int. OSC
2MHz
Int. OSC
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8.3
Clock Sources
The clock sources are divided in two main groups: internal oscillators and external clock sources. Most of the clock sources
can be directly enabled and disabled from software, while others are automatically enabled or disabled, depending on
peripheral settings. After reset, the device starts up running from the 2MHz internal oscillator. The other clock sources,
DFLLs and PLL, are turned off by default.
The internal oscillators do not require any external components to run. For details on characteristics and accuracy of the
internal oscillators, refer to the device datasheet.
8.3.1 32kHz Ultra Low Power Internal Oscillator
This oscillator provides an approximate 32kHz clock. The 32kHz ultra low power (ULP) internal oscillator is a very low power
clock source, and it is not designed for high accuracy. The oscillator employs a built-in prescaler that provides a 1kHz output.
The oscillator is automatically enabled/disabled when it is used as clock source for any part of the device. This oscillator can
be selected as the clock source for the RTC.
8.3.2 32.768kHz Calibrated Internal Oscillator
This oscillator provides an approximate 32.768kHz clock. It is calibrated during production to provide a default frequency
close to its nominal frequency. The calibration register can also be written from software for run-time calibration of the
oscillator frequency. The oscillator employs a built-in prescaler, which provides both a 32.768kHz output and a 1.024kHz
output.
8.3.3 32.768kHz Crystal Oscillator
A 32.768kHz crystal oscillator can be connected between the TOSC1 and TOSC2 pins and enables a dedicated low
frequency oscillator input circuit. A low power mode with reduced voltage swing on TOSC2 is available. This oscillator can be
used as a clock source for the system clock and RTC, and as the DFLL reference clock.
Note that the possibly long oscillation start-up time of 1 to 5 seconds of the 32kHz crystal oscillator could make its usage as
a system clock application restrictive. This oscillator is unsuitable for critical usage over the automotive operating range due
to low safety factor.
8.3.4 0.4 - 16MHz Crystal Oscillator
This oscillator can operate in four different modes optimized for different frequency ranges, all within 0.4 - 16MHz.
8.3.5 2MHz Run-time Calibrated Internal Oscillator
The 2MHz run-time calibrated internal oscillator is the default system clock source after reset. It is calibrated during
production to provide a default frequency close to its nominal frequency. A DFLL can be enabled for automatic run-time
calibration of the oscillator to compensate for temperature and voltage drift and optimize the oscillator accuracy.
8.3.6 32MHz Run-time Calibrated Internal Oscillator
The 32MHz run-time calibrated internal oscillator is a high-frequency oscillator. It is calibrated during production to provide a
default frequency close to its nominal frequency. A digital frequency looked loop (DFLL) can be enabled for automatic run-
time calibration of the oscillator to compensate for temperature and voltage drift and optimize the oscillator accuracy. This
oscillator can also be adjusted and calibrated to any frequency between 30MHz and 55MHz.
8.3.7 External Clock Sources
The XTAL1 and XTAL2 pins can be used to drive an external oscillator, either a quartz crystal or a ceramic resonator. XTAL1
can be used as input for an external clock signal. The TOSC1 and TOSC2 pins is dedicated to driving a 32.768kHz crystal
oscillator.
8.3.8 PLL with 1x-31x Multiplication Factor
The built-in phase locked loop (PLL) can be used to generate a high-frequency system clock. The PLL has a user-selectable
multiplication factor of from 1 to 31. In combination with the prescalers, this gives a wide range of output frequencies from all
clock sources.
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9.
Power Management and Sleep Modes
9.1
Features
●
●
Power management for adjusting power consumption and functions
Five sleep modes
●
●
●
●
●
Idle
Power down
Power save
Standby
Extended standby
●
Power reduction register to disable clock and turn off unused peripherals in active and idle modes
9.2
Overview
Various sleep modes and clock gating are provided in order to tailor power consumption to application requirements. This
enables the Atmel AVR XMEGA microcontroller to stop unused modules to save power.
All sleep modes are available and can be entered from active mode. In active mode, the CPU is executing application code.
When the device enters sleep mode, program execution is stopped and interrupts or a reset is used to wake the device
again. The application code decides which sleep mode to enter and when. Interrupts from enabled peripherals and all
enabled reset sources can restore the microcontroller from sleep to active mode.
In addition, power reduction registers provide a method to stop the clock to individual peripherals from software. When this is
done, the current state of the peripheral is frozen, and there is no power consumption from that peripheral. This reduces the
power consumption in active mode and idle sleep modes and enables much more fine-tuned power management than sleep
modes alone.
9.3
Sleep Modes
Sleep modes are used to shut down modules and clock domains in the microcontroller in order to save power. XMEGA
microcontrollers have five different sleep modes tuned to match the typical functional stages during application execution. A
dedicated sleep instruction (SLEEP) is available to enter sleep mode. Interrupts are used to wake the device from sleep, and
the available interrupt wake-up sources are dependent on the configured sleep mode. When an enabled interrupt occurs, the
device will wake up and execute the interrupt service routine before continuing normal program execution from the first
instruction after the SLEEP instruction. If other, higher priority interrupts are pending when the wake-up occurs, their
interrupt service routines will be executed according to their priority before the interrupt service routine for the wake-up
interrupt is executed. After wake-up, the CPU is halted for four cycles before execution starts.
The content of the register file, SRAM and registers are kept during sleep. If a reset occurs during sleep, the device will
reset, start up, and execute from the reset vector.
9.3.1 Idle Mode
In idle mode the CPU and nonvolatile memory are stopped (note that any ongoing programming will be completed), but all
peripherals, including the interrupt controller and event system are kept running. Any enabled interrupt will wake the device.
9.3.2 Power-down Mode
In power-down mode, all clocks, including the real-time counter clock source, are stopped. This allows operation only of
asynchronous modules that do not require a running clock. The only interrupts that can wake up the MCU are the two-wire
interface address match interrupt and asynchronous port interrupts.
9.3.3 Power-save Mode
Power-save mode is identical to power down, with one exception. If the real-time counter (RTC) is enabled, it will keep
running during sleep, and the device can also wake up from either an RTC overflow or compare match interrupt.
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9.3.4 Standby Mode
Standby mode is identical to power down, with the exception that the enabled system clock sources are kept running while
the CPU, peripheral, and RTC clocks are stopped. This reduces the wake-up time.
9.3.5 Extended Standby Mode
Extended standby mode is identical to power-save mode, with the exception that the enabled system clock sources are kept
running while the CPU and peripheral clocks are stopped. This reduces the wake-up time.
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10. System Control and Reset
10.1 Features
●
●
Reset the microcontroller and set it to initial state when a reset source goes active
Multiple reset sources that cover different situations
●
●
●
●
●
●
Power-on reset
External reset
Watchdog reset
Brownout reset
PDI reset
Software reset
●
●
Asynchronous operation
●
No running system clock in the device is required for reset
Reset status register for reading the reset source from the application code
10.2 Overview
The reset system issues a microcontroller reset and sets the device to its initial state. This is for situations where operation
should not start or continue, such as when the microcontroller operates below its power supply rating. If a reset source goes
active, the device enters and is kept in reset until all reset sources have released their reset. The I/O pins are immediately tri-
stated. The program counter is set to the reset vector location, and all I/O registers are set to their initial values. The SRAM
content is kept. However, if the device accesses the SRAM when a reset occurs, the content of the accessed location can
not be guaranteed.
After reset is released from all reset sources, the default oscillator is started and calibrated before the device starts running
from the reset vector address. By default, this is the lowest program memory address, 0, but it is possible to move the reset
vector to the lowest address in the boot section.
The reset functionality is asynchronous, and so no running system clock is required to reset the device. The software reset
feature makes it possible to issue a controlled system reset from the user software.
The reset status register has individual status flags for each reset source. It is cleared at power-on reset, and shows which
sources have issued a reset since the last power-on.
10.3 Reset Sequence
A reset request from any reset source will immediately reset the device and keep it in reset as long as the request is active.
When all reset requests are released, the device will go through three stages before the device starts running again:
●
●
●
Reset counter delay
Oscillator start-up
Oscillator calibration
If another reset requests occurs during this process, the reset sequence will start over again.
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10.4 Reset Sources
10.4.1 Power-on Reset
A power-on reset (POR) is generated by an on-chip detection circuit. The POR is activated when the VCC rises and reaches
the POR threshold voltage (VPOT), and this will start the reset sequence.
The POR is also activated to power down the device properly when the VCC falls and drops below the VPOT level.
The VPOT level is higher for falling VCC than for rising VCC. Consult the datasheet for POR characteristics data.
10.4.2 Brownout Detection
The on-chip brownout detection (BOD) circuit monitors the VCC level during operation by comparing it to a fixed,
programmable level that is selected by the BODLEVEL fuses. If disabled, BOD is forced on at the lowest level during chip
erase and when the PDI is enabled.
10.4.3 External Reset
The external reset circuit is connected to the external RESET pin. The external reset will trigger when the RESET pin is
driven below the RESET pin threshold voltage, VRST, for longer than the minimum pulse period, tEXT. The reset will be held
as long as the pin is kept low. The RESET pin includes an internal pull-up resistor.
10.4.4 Watchdog Reset
The watchdog timer (WDT) is a system function for monitoring correct program operation. If the WDT is not reset from the
software within a programmable timeout period, a watchdog reset will be given. The watchdog reset is active for one to two
clock cycles of the 2MHz internal oscillator. For more details see Section 11. “WDT – Watchdog Timer” on page 23.
10.4.5 Software Reset
The software reset makes it possible to issue a system reset from software by writing to the software reset bit in the reset
control register.The reset will be issued within two CPU clock cycles after writing the bit. It is not possible to execute any
instruction from when a software reset is requested until it is issued.
10.4.6 Program and Debug Interface Reset
The program and debug interface reset contains a separate reset source that is used to reset the device during external
programming and debugging. This reset source is accessible only from external debuggers and programmers.
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11. WDT – Watchdog Timer
11.1 Features
●
●
●
●
●
Issues a device reset if the timer is not reset before its timeout period
Asynchronous operation from dedicated oscillator
1kHz output of the 32kHz ultra low power oscillator
11 selectable timeout periods, from 8ms to 8s
Two operation modes:
●
●
Normal mode
Window mode
●
Configuration lock to prevent unwanted changes
11.2 Overview
The watchdog timer (WDT) is a system function for monitoring correct program operation. It makes it possible to recover
from error situations such as runaway or deadlocked code. The WDT is a timer, configured to a predefined timeout period,
and is constantly running when enabled. If the WDT is not reset within the timeout period, it will issue a microcontroller reset.
The WDT is reset by executing the WDR (watchdog timer reset) instruction from the application code.
The window mode makes it possible to define a time slot or window inside the total timeout period during which WDT must
be reset. If the WDT is reset outside this window, either too early or too late, a system reset will be issued. Compared to the
normal mode, this can also catch situations where a code error causes constant WDR execution.
The WDT will run in active mode and all sleep modes, if enabled. It is asynchronous, runs from a CPU-independent clock
source, and will continue to operate to issue a system reset even if the main clocks fail.
The configuration change protection mechanism ensures that the WDT settings cannot be changed by accident. For
increased safety, a fuse for locking the WDT settings is also available.
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12. Interrupts and Programmable Multilevel Interrupt Controller
12.1 Features
●
●
●
Short and predictable interrupt response time
Separate interrupt configuration and vector address for each interrupt
Programmable multilevel interrupt controller
●
●
●
●
Interrupt prioritizing according to level and vector address
Three selectable interrupt levels for all interrupts: low, medium, and high
Selectable, round-robin priority scheme within low-level interrupts
Non-maskable interrupts for critical functions
●
Interrupt vectors optionally placed in the application section or the boot loader section
12.2 Overview
Interrupts signal a change of state in peripherals, and this can be used to alter program execution. Peripherals can have one
or more interrupts, and all are individually enabled and configured. When an interrupt is enabled and configured, it will
generate an interrupt request when the interrupt condition is present. The programmable multilevel interrupt controller
(PMIC) controls the handling and prioritizing of interrupt requests. When an interrupt request is acknowledged by the PMIC,
the program counter is set to point to the interrupt vector, and the interrupt handler can be executed.
All peripherals can select between three different priority levels for their interrupts: low, medium, and high. Interrupts are
prioritized according to their level and their interrupt vector address. Medium-level interrupts will interrupt low-level interrupt
handlers. High-level interrupts will interrupt both medium- and low-level interrupt handlers. Within each level, the interrupt
priority is decided from the interrupt vector address, where the lowest interrupt vector address has the highest interrupt
priority. Low-level interrupts have an optional round-robin scheduling scheme to ensure that all interrupts are serviced within
a certain amount of time.
Non-maskable interrupts (NMI) are also supported, and can be used for system critical functions.
12.3 Interrupt Vectors
The interrupt vector is the sum of the peripheral’s base interrupt address and the offset address for specific interrupts in each
peripheral. The base addresses for the Atmel AVR XMEGA D3 devices are shown in Table 12-1 on page 25. Offset
addresses for each interrupt available in the peripheral are described for each peripheral in the XMEGA D manual. For
peripherals or modules that have only one interrupt, the interrupt vector is shown in Table 12-1 on page 25. The program
address is the word address.
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Table 12-1. Reset and Interrupt Vectors
Program Address
(Base Address)
0x000
0x002
0x004
0x008
0x014
0x018
0x01C
0x028
0x030
0x032
0x040
0x044
0x056
0x05A
0x05E
0x074
0x080
0x084
0x088
0x08E
0x09A
0x0AE
0x0B0
0x0B6
0x0D0
0x0D8
Source
Interrupt Description
RESET
OSCF_INT_vect
PORTC_INT_base
PORTR_INT_base
RTC_INT_base
Crystal oscillator failure interrupt vector (NMI)
Port C interrupt base
Port R interrupt base
Real Time Counter Interrupt base
Two-Wire Interface on Port C Interrupt base
Timer/Counter 0 on port C Interrupt base
Timer/Counter 1 on port C Interrupt base
SPI on port C Interrupt vector
TWIC_INT_base
TCC0_INT_base
TCC1_INT_base
SPIC_INT_vect
USARTC0_INT_base
NVM_INT_base
PORTB_INT_base
PORTE_INT_base
TWIE_INT_base
TCE0_INT_base
USARTE0_INT_base
PORTD_INT_base
PORTA_INT_base
ACA_INT_base
ADCA_INT_base
TCD0_INT_base
SPID_INT_vector
USARTD0_INT_base
USARTD1_INT_base
PORTF_INT_base
TCF0_INT_base
USART 0 on port C Interrupt base
Non-Volatile Memory Interrupt base
Port B Interrupt base
Port E Interrupt base
Two-Wire Interface on Port E Interrupt base
Timer/Counter 0 on port E Interrupt base
USART 0 on port E Interrupt base
Port D Interrupt base
Port A Interrupt base
Analog Comparator on Port A Interrupt base
Analog to Digital Converter on Port A Interrupt base
Timer/Counter 0 on port D Interrupt base
SPI on port D Interrupt vector
USART 0 on port D Interrupt base
USART 1 on port D Interrupt base
Port F Interrupt base
Timer/Counter 0 on port F Interrupt base
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13. I/O ports
13.1 Features
●
●
50 general purpose input and output pins with individual configuration
Output driver with configurable driver and pull settings:
●
●
●
●
●
Totem-pole
Wired-AND
Wired-OR
Bus-keeper
Inverted I/O
●
Input with synchronous and/or asynchronous sensing with interrupts and events
●
●
●
●
Sense both edges
Sense rising edges
Sense falling edges
Sense low level
●
●
●
●
Optional pull-up and pull-down resistor on input and Wired-OR/AND configuration
Asynchronous pin change sensing that can wake the device from all sleep modes
Two port interrupts with pin masking per I/O port
Efficient and safe access to port pins
●
●
●
Hardware read-modify-write through dedicated toggle/clear/set registers
Configuration of multiple pins in a single operation
Mapping of port registers into bit-accessible I/O memory space
●
●
●
●
Peripheral clocks output on port pin
Real-time counter clock output to port pin
Event channels can be output on port pin
Remapping of digital peripheral pin functions
●
Selectable USART, SPI, and timer/counter input/output pin locations
13.2 Overview
One port consists of up to eight port pins: pin 0 to 7. Each port pin can be configured as input or output with configurable
driver and pull settings. They also implement synchronous and asynchronous input sensing with interrupts and events for
selectable pin change conditions. Asynchronous pin-change sensing means that a pin change can wake the device from all
sleep modes, included the modes where no clocks are running.
All functions are individual and configurable per pin, but several pins can be configured in a single operation. The pins have
hardware read-modify-write (RMW) functionality for safe and correct change of drive value and/or pull resistor configuration.
The direction of one port pin can be changed without unintentionally changing the direction of any other pin.
The port pin configuration also controls input and output selection of other device functions. It is possible to have both the
peripheral clock and the real-time clock output to a port pin, and available for external use. The same applies to events from
the event system that can be used to synchronize and control external functions. Other digital peripherals, such as USART,
SPI, and timer/counters, can be remapped to selectable pin locations in order to optimize pin-out versus application needs.
The notation of the ports are PORTA, PORTB, PORTC, PORTD, PORTE, PORTF and PORTR.
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13.3 Output driver
All port pins (Pn) have programmable output configuration.
13.3.1 Push-pull
Figure 13-1. I/O Configuration - Totem-pole
DIRn
OUTn
INn
Pn
13.3.2 Pull-down
Figure 13-2. I/O Configuration - Totem-pole with Pull-down (on Input)
DIRn
OUTn
INn
Pn
13.3.3 Pull-up
Figure 13-3. I/O Configuration - Totem-pole with Pull-up (on Input)
DIRn
OUTn
INn
Pn
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13.3.4 Bus-keeper
The bus-keeper’s weak output produces the same logical level as the last output level. It acts as a pull-up if the last level was
‘1’, and pull-down if the last level was ‘0’.
Figure 13-4. I/O Configuration - Totem-pole with Bus-keeper
DIRn
OUTn
INn
Pn
13.3.5 Others
Figure 13-5. Output Configuration - Wired-OR with Optional Pull-down
OUTn
Pn
INn
Figure 13-6. I/O Configuration - Wired-AND with Optional Pull-up
INn
Pn
OUTn
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13.4 Input Sensing
Input sensing is synchronous or asynchronous depending on the enabled clock for the ports, and the configuration is shown
in Figure 13-7.
Figure 13-7. Input Sensing System Overview
Asynchronous sensing
EDGE
DETECT
Interrupt
Control
IRQ
Synchronous sensing
Pxn
Synchronizer
INn
EDGE
DETECT
D
Q D Q
Synchronous
Events
R
R
INVERTED I/O
Asynchronous
Events
When a pin is configured with inverted I/O, the pin value is inverted before the input sensing.
13.5 Alternate Port Functions
Most port pins have alternate pin functions in addition to being a general purpose I/O pin. When an alternate function is
enabled, it might override the normal port pin function or pin value. This happens when other peripherals that require pins
are enabled or configured to use pins. If and how a peripheral will override and use pins is described in the section for that
peripheral. Section 27. “Pinout and Pin Functions” on page 45 shows which modules on peripherals that enable alternate
functions on a pin, and which alternate functions that are available on a pin.
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14. TC0/1 – 16-bit Timer/Counter Type 0 and 1
14.1 Features
●
Five 16-bit timer/counters
●
●
●
Four timer/counters of type 0
One timer/counter of type 1
Split-mode enabling two 8-bit timer/counter from each timer/counter type 0
●
●
32-bit timer/counter support by cascading two timer/counters
Up to four compare or capture (CC) channels
●
●
Four CC channels for timer/counters of type 0
Two CC channels for timer/counters of type 1
●
●
●
Double buffered timer period setting
Double buffered capture or compare channels
Waveform generation:
●
●
●
Frequency generation
Single-slope pulse width modulation
Dual-slope pulse width modulation
●
Input capture:
●
●
●
●
Input capture with noise cancelling
Frequency capture
Pulse width capture
32-bit input capture
●
●
●
Timer overflow and error interrupts/events
One compare match or input capture interrupt/event per CC channel
Can be used with event system for:
●
●
●
Quadrature decoding
Count and direction control
Capture
●
●
●
High-resolution extension
●
Increases frequency and waveform resolution by 4× (2-bit) or 8× (3-bit)
Advanced waveform extension:
●
Low- and high-side output with programmable dead-time insertion (DTI)
Event controlled fault protection for safe disabling of drivers
14.2 Overview
Atmel AVR XMEGA D3 devices have a set of five flexible 16-bit timer/counters (TC). Their capabilities include accurate
program execution timing, frequency and waveform generation, and input capture with time and frequency measurement of
digital signals. Two timer/counters can be cascaded to create a 32-bit timer/counter with optional 32-bit capture.
A timer/counter consists of a base counter and a set of compare or capture (CC) channels. The base counter can be used to
count clock cycles or events. It has direction control and period setting that can be used for timing. The CC channels can be
used together with the base counter to do compare match control, frequency generation, and pulse width waveform
modulation, as well as various input capture operations. A timer/counter can be configured for either capture or compare
functions, but cannot perform both at the same time.
A timer/counter can be clocked and timed from the peripheral clock with optional prescaling or from the event system. The
event system can also be used for direction control and capture trigger or to synchronize operations.
There are two differences between timer/counter type 0 and type 1. Timer/counter 0 has four CC channels, and
timer/counter 1 has two CC channels. All information related to CC channels 3 and 4 is valid only for timer/counter 0. Only
Timer/Counter 0 has the split mode feature that split it into two 8-bit Timer/Counters with four compare channels each.
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Some timer/counters have extensions to enable more specialized waveform and frequency generation. The advanced
waveform extension (AWeX) is intended for motor control and other power control applications. It enables low- and high-side
output with dead-time insertion, as well as fault protection for disabling and shutting down external drivers. It can also
generate a synchronized bit pattern across the port pins.
The advanced waveform extension can be enabled to provide extra and more advanced features for the Timer/Counter. This
are only available for Timer/Counter 0. See Section 16. “AWeX – Advanced Waveform Extension” on page 33 for more
details.
The high-resolution (hi-res) extension can be used to increase the waveform output resolution by four or eight times by using
an internal clock source running up to four times faster than the peripheral clock. See Section 17. “Hi-Res – High Resolution
Extension” on page 33 for more details.
Figure 14-1. Overview of a Timer/Counter and Closely Related Peripherals
Timer/Counter
Base Counter
Prescaler
clkPER
Timer Period
Control Logic
Event
System
Counter
clkPER4
Compare/Capture Channel D
Compare/Capture Channel C
Compare/Capture Channel B
Compare/Capture Channel A
AWeX
Pattern
Dead-Time
Insertion
Generation
Fault
Protection
Capture
Comparator
Control
Waveform
Generation
Buffer
PORTC has one Timer/Counter 0 and one Timer/Counter1. PORTD, PORTE and PORTF each has one Timer/Counter 0.
Notation of these are TCC0 (Time/Counter C0), TCC1, TCD0, TCE0, and TCF0, respectively.
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15. TC2 – Timer/Counter Type 2
15.1 Features
●
●
●
Eight 8-bit timer/counters
●
●
Four Low-byte timer/counter
Four High-byte timer/counter
Up to eight compare channels in each Timer/Counter 2
●
●
Four compare channels for the low-byte timer/counter
Four compare channels for the high-byte timer/counter
Waveform generation
●
Single slope pulse width modulation
●
●
●
Timer underflow interrupts/events
One compare match interrupt/event per compare channel for the low-byte timer/counter
Can be used with the event system for count control
15.2 Overview
There are four Timer/Counter 2. These are realized when a Timer/Counter 0 is set in split mode. It is then a system of two
eight-bit timer/counters, each with four compare channels. This results in eight configurable pulse width modulation (PWM)
channels with individually controlled duty cycles, and is intended for applications that require a high number of PWM
channels.
The two eight-bit timer/counters in this system are referred to as the low-byte timer/counter and high-byte timer/counter,
respectively. The difference between them is that only the low-byte timer/counter can be used to generate compare match
interrupts and events. The two eight-bit timer/counters have a shared clock source and separate period and compare
settings. They can be clocked and timed from the peripheral clock, with optional prescaling, or from the event system. The
counters are always counting down.
PORTC, PORTD, PORTE and PORTF each has one Timer/Counter 2. Notation of these are TCC2 (Timer/Counter C2),
TCD2, TCE2 and TCF2, respectively.
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16. AWeX – Advanced Waveform Extension
16.1 Features
●
●
Waveform output with complementary output from each compare channel
Four dead-time insertion (DTI) units
●
●
●
●
8-bit resolution
Separate high and low side dead-time setting
Double buffered dead time
Optionally halts timer during dead-time insertion
●
●
Pattern generation unit creating synchronised bit pattern across the port pins
●
●
Double buffered pattern generation
Optional distribution of one compare channel output across the port pins
Event controlled fault protection for instant and predictable fault triggering
16.2 Overview
The advanced waveform extension (AWeX) provides extra functions to the timer/counter in waveform generation (WG)
modes. It is primarily intended for use with different types of motor control and other power control applications. It enables
low- and high side output with dead-time insertion and fault protection for disabling and shutting down external drivers. It can
also generate a synchronized bit pattern across the port pins.
Each of the waveform generator outputs from the timer/counter 0 are split into a complimentary pair of outputs when any
AWeX features are enabled. These output pairs go through a dead-time insertion (DTI) unit that generates the non-inverted
low side (LS) and inverted high side (HS) of the WG output with dead-time insertion between LS and HS switching. The DTI
output will override the normal port value according to the port override setting.
The pattern generation unit can be used to generate a synchronized bit pattern on the port it is connected to. In addition, the
WG output from compare channel A can be distributed to and override all the port pins. When the pattern generator unit is
enabled, the DTI unit is bypassed.
The fault protection unit is connected to the event system, enabling any event to trigger a fault condition that will disable the
AWeX output. The event system ensures predictable and instant fault reaction, and gives flexibility in the selection of fault
triggers.
The AWeX is available for TCC0. The notation of this is AWEXC.
17. Hi-Res – High Resolution Extension
17.1 Features
●
●
●
Increases waveform generator resolution up to 8× (three bits)
Supports frequency, single-slope PWM, and dual-slope PWM generation
Supports the AWeX when this is used for the same timer/counter
17.2 Overview
The high-resolution (hi-res) extension can be used to increase the resolution of the waveform generation output from a
timer/counter by four or eight. It can be used for a timer/counter doing frequency, single-slope PWM, or dual-slope PWM
generation. It can also be used with the AWeX if this is used for the same timer/counter.
The hi-res extension uses the peripheral 4× clock (ClkPER4). The system clock prescalers must be configured so the
peripheral 4× clock frequency is four times higher than the peripheral and CPU clock frequency when the hi-res extension is
enabled.
There is one hi-res extensions that can be enabled for timer/counters pair on PORTC. The notation of this is HIRESC.
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18. RTC – 16-bit Real-Time Counter
18.1 Features
●
●
16-bit resolution
Selectable clock source
●
●
●
●
32.768kHz external crystal
External clock
32.768kHz internal oscillator
32kHz internal ULP oscillator
●
●
●
●
●
Programmable 10-bit clock prescaling
One compare register
One period register
Clear counter on period overflow
Optional interrupt/event on overflow and compare match
18.2 Overview
The 16-bit real-time counter (RTC) is a counter that typically runs continuously, including in low-power sleep modes, to keep
track of time. It can wake up the device from sleep modes and/or interrupt the device at regular intervals.
The reference clock is typically the 1.024kHz output from a high-accuracy crystal of 32.768kHz, and this is the configuration
most optimized for low power consumption. The faster 32.768kHz output can be selected if the RTC needs a resolution
higher than 1ms. The RTC can also be clocked from an external clock signal, the 32.768kHz internal oscillator or the 32kHz
internal ULP oscillator.
The RTC includes a 10-bit programmable prescaler that can scale down the reference clock before it reaches the counter. A
wide range of resolutions and time-out periods can be configured. With a 32.768kHz clock source, the maximum resolution
is 30.5µs, and time-out periods can range up to 2000 seconds. With a resolution of 1s, the maximum timeout period is more
than18 hours (65536 seconds). The RTC can give a compare interrupt and/or event when the counter equals the compare
register value, and an overflow interrupt and/or event when it equals the period register value.
Figure 18-1. Real-time Counter Overview
External Clock
TOSC1
32.768kHz Crystal Osc
TOSC2
32.768kHz Int. Osc
32kHz Int. ULP (DIV32)
PER
RTCSRC
TOP/
Overflow
clkRTC
=
10-bit
CNT
Prescaler
“match”/
Compare
=
COMP
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19. TWI – Two-Wire Interface
19.1 Features
●
●
Two Identical two-wire interface peripherals
Bidirectional, two-wire communication interface
●
●
Phillips I2C compatible
System Management Bus (SMBus) compatible
●
●
Bus master and slave operation supported
●
●
●
●
Slave operation
Single bus master operation
Bus master in multi-master bus environment
Multi-master arbitration
Flexible slave address match functions
●
●
●
●
7-bit and general call address recognition in hardware
10-bit addressing supported
Address mask register for dual address match or address range masking
Optional software address recognition for unlimited number of addresses
●
●
●
●
●
●
●
Slave can operate in all sleep modes, including power-down
Slave address match can wake device from all sleep modes
100kHz and 400kHz bus frequency support
Slew-rate limited output drivers
Input filter for bus noise and spike suppression
Support arbitration between start/repeated start and data bit (SMBus)
Slave arbitration allows support for address resolve protocol (ARP) (SMBus)
19.2 Overview
The two-wire interface (TWI) is a bidirectional, two-wire communication interface. It is I2C and System Management Bus
(SMBus) compatible. The only external hardware needed to implement the bus is one pull-up resistor on each bus line.
A device connected to the bus must act as a master or a slave. The master initiates a data transaction by addressing a slave
on the bus and telling whether it wants to transmit or receive data. One bus can have many slaves and one or several
masters that can take control of the bus. An arbitration process handles priority if more than one master tries to transmit data
at the same time. Mechanisms for resolving bus contention are inherent in the protocol.
The TWI module supports master and slave functionality. The master and slave functionality are separated from each other,
and can be enabled and configured separately. The master module supports multi-master bus operation and arbitration. It
contains the baud rate generator. Both 100kHz and 400kHz bus frequency is supported. Quick command and smart mode
can be enabled to auto-trigger operations and reduce software complexity.
The slave module implements 7-bit address match and general address call recognition in hardware. 10-bit addressing is
also supported. A dedicated address mask register can act as a second address match register or as a register for address
range masking. The slave continues to operate in all sleep modes, including power-down mode. This enables the slave to
wake up the device from all sleep modes on TWI address match. It is possible to disable the address matching to let this be
handled in software instead.
The TWI module will detect START and STOP conditions, bus collisions, and bus errors. Arbitration lost, errors, collision,
and clock hold on the bus are also detected and indicated in separate status flags available in both master and slave modes.
It is possible to disable the TWI drivers in the device, and enable a four-wire digital interface for connecting to an external
TWI bus driver. This can be used for applications where the device operates from a different VCC voltage than used by the
TWI bus.
PORTC and PORTE each has one TWI. Notation of these peripherals are TWIC and TWIE.
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20. SPI – Serial Peripheral Interface
20.1 Features
●
●
●
●
●
●
●
●
●
Two identical SPI peripherals
Full-duplex, three-wire synchronous data transfer
Master or slave operation
Lsb first or msb first data transfer
Eight programmable bit rates
Interrupt flag at the end of transmission
Write collision flag to indicate data collision
Wake up from idle sleep mode
Double speed master mode
20.2 Overview
The Serial Peripheral Interface (SPI) is a high-speed synchronous data transfer interface using three or four pins. It allows
fast communication between an Atmel AVR XMEGA device and peripheral devices or between several microcontrollers. The
SPI supports full-duplex communication.
A device connected to the bus must act as a master or slave. The master initiates and controls all data transactions.
PORTC and PORTD each has one SPI. Notation of these peripherals are SPIC and SPID, respectively.
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21. USART
21.1 Features
●
●
●
Three identical USART peripherals
Full-duplex operation
Asynchronous or synchronous operation
●
●
Synchronous clock rates up to 1/2 of the device clock frequency
Asynchronous clock rates up to 1/8 of the device clock frequency
●
●
Supports serial frames with 5, 6, 7, 8 or 9 data bits and 1 or 2 stop bits
Fractional baud rate generator
●
●
Can generate desired baud rate from any system clock frequency
No need for external oscillator with certain frequencies
●
●
Built-in error detection and correction schemes
●
●
●
Odd or even parity generation and parity check
Data overrun and framing error detection
Noise filtering includes false start bit detection and digital low-pass filter
Separate interrupts for
●
●
●
Transmit complete
Transmit data register empty
Receive complete
●
●
●
Multiprocessor communication mode
●
●
Addressing scheme to address a specific devices on a multidevice bus
Enable unaddressed devices to automatically ignore all frames
Master SPI mode
●
●
Double buffered operation
Operation up to 1/2 of the peripheral clock frequency
IRCOM module for IrDA compliant pulse modulation/demodulation
21.2 Overview
The universal synchronous and asynchronous serial receiver and transmitter (USART) is a fast and flexible serial
communication module. The USART supports full-duplex communication and asynchronous and synchronous operation.
The USART can be configured to operate in SPI master mode and used for SPI communication.
Communication is frame based, and the frame format can be customized to support a wide range of standards. The USART
is buffered in both directions, enabling continued data transmission without any delay between frames. Separate interrupts
for receive and transmit complete enable fully interrupt driven communication. Frame error and buffer overflow are detected
in hardware and indicated with separate status flags. Even or odd parity generation and parity check can also be enabled.
The clock generator includes a fractional baud rate generator that is able to generate a wide range of USART baud rates
from any system clock frequencies. This removes the need to use an external crystal oscillator with a specific frequency to
achieve a required baud rate. It also supports external clock input in synchronous slave operation.
When the USART is set in master SPI mode, all USART-specific logic is disabled, leaving the transmit and receive buffers,
shift registers, and baud rate generator enabled. Pin control and interrupt generation are identical in both modes. The
registers are used in both modes, but their functionality differs for some control settings.
An IRCOM module can be enabled for one USART to support IrDA 1.4 physical compliant pulse modulation and
demodulation for baud rates up to 115.2kbps.
PORTC, PORTD, and PORTE each has one USART. Notation of these peripherals are USARTC0, USARTD0 and
USARTE0, respectively.
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22. IRCOM – IR Communication Module
22.1 Features
●
●
●
Pulse modulation/demodulation for infrared communication
IrDA compatible for baud rates up to 115.2kbps
Selectable pulse modulation scheme
●
●
●
3/16 of the baud rate period
Fixed pulse period, 8-bit programmable
Pulse modulation disabled
●
●
Built-in filtering
Can be connected to and used by any USART
22.2 Overview
Atmel AVR XMEGA devices contain an infrared communication module (IRCOM) that is IrDA compatible for baud rates up to
115.2kbps. It can be connected to any USART to enable infrared pulse encoding/decoding for that USART.
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23. CRC – Cyclic Redundancy Check Generator
23.1 Features
●
Cyclic redundancy check (CRC) generation and checking for
●
●
●
Communication data
Program or data in flash memory
Data in SRAM and I/O memory space
●
●
●
Integrated with flash memory and CPU
●
●
Automatic CRC of the complete or a selectable range of the flash memory
CPU can load data to the CRC generator through the I/O interface
CRC polynomial software selectable to
●
●
CRC-16 (CRC-CCITT)
CRC-32 (IEEE 802.3)
Zero remainder detection
23.2 Overview
A cyclic redundancy check (CRC) is an error detection technique test algorithm used to find accidental errors in data, and it
is commonly used to determine the correctness of a data transmission, and data present in the data and program memories.
A CRC takes a data stream or a block of data as input and generates a 16- or 32-bit output that can be appended to the data
and used as a checksum. When the same data are later received or read, the device or application repeats the calculation. If
the new CRC result does not match the one calculated earlier, the block contains a data error. The application will then
detect this and may take a corrective action, such as requesting the data to be sent again or simply not using the incorrect
data.
Typically, an n-bit CRC applied to a data block of arbitrary length will detect any single error burst not longer than n bits (any
single alteration that spans no more than n bits of the data), and will detect the fraction 1-2-n of all longer error bursts. The
CRC module in Atmel AVR XMEGA devices supports two commonly used CRC polynomials; CRC-16 (CRC-CCITT) and
CRC-32 (IEEE 802.3).
CRC-16:
Polynominal: x16+x12+x5+1
Hex value:
0x1021
CRC-32:
Polynominal: x32+x26+x23+x22+x16+x12+x11+x10+x8+x7+x5+x4+x2+x+1
Hex value: 0x04C11DB7
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24. ADC – 12-bit Analog to Digital Converter
24.1 Features
●
●
●
One Analog to Digital Converter (ADC)
12-bit resolution
Up to 300 thousand samples per second
●
●
Down to 2.3µs conversion time with 8-bit resolution
Down to 3.35µs conversion time with 12-bit resolution
●
Differential and single-ended input
●
●
●
16 single-ended inputs
16 4 differential inputs without gain
8 4 differential input with gain
●
Built-in differential gain stage
1/2×, 1×, 2×, 4×, 8×, 16×, 32× and 64× gain options
●
●
●
Single, continuous and scan conversion options
Two internal inputs
●
●
VCC voltage divided by 10
1.1V bandgap voltage
●
●
●
●
Internal and external reference options
Compare function for accurate monitoring of user defined thresholds
Optional event triggered conversion for accurate timing
Optional interrupt/event on compare result
24.2 Overview
The ADC converts analog signals to digital values. The ADC has 12-bit resolution and is capable of converting up to 300
thousand samples per second (ksps). The input selection is flexible, and both single-ended and differential measurements
can be done. For differential measurements, an optional gain stage is available to increase the dynamic range. In addition,
several internal signal inputs are available. The ADC can provide both signed and unsigned results.
The ADC measurements can either be started by application software or an incoming event from another peripheral in the
device. The ADC measurements can be started with predictable timing, and without software intervention.
Both internal and external reference voltages can be used. The VCC/10 and the bandgap voltage can also be measured by
the ADC.
The ADC has a compare function for accurate monitoring of user defined thresholds with minimum software intervention
required.
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Figure 24-1. ADC Overview
Compare
Register
ADC0
.
.
.
<
>
VINP
ADC15
Threshold
(Int Req)
Internal
Signals
CH0 Result
ADC
ADC0
VINP
.
.
.
ADC7
Internal 1.00V
Internal VCC/1.6V
Internal VCC/2
AREFA
Reference
Voltage
AREFB
The ADC may be configured for 8- or 12-bit result, reducing the minimum conversion time (propagation delay) from 3.35µs
for 12-bit to 2.3µs for 8-bit result.
ADC conversion results are provided left- or right adjusted with optional ‘1’ or ‘0’ padding. This eases calculation when the
result is represented as a signed integer (signed 16-bit number).
PORTA has one ADC. Notation of this peripheral is ADCA.
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25. AC – Analog Comparator
25.1 Features
●
●
Two analog comparators (AC)
Selectable hysteresis
●
●
●
No
Small
Large
●
●
Analog comparator output available on pin
Flexible input selection
●
●
●
All pins on the port
Bandgap reference voltage
A 64-level programmable voltage scaler of the internal VCC voltage
●
●
●
Interrupt and event generation on:
●
●
●
Rising edge
Falling edge
Toggle
Window function interrupt and event generation on:
●
●
●
Signal above window
Signal inside window
Signal below window
Constant current source with configurable output pin selection
25.2 Overview
The analog comparator (AC) compares the voltage levels on two inputs and gives a digital output based on this comparison.
The analog comparator may be configured to generate interrupt requests and/or events upon several different combinations
of input change.
The analog comparator hysteresis can be adjusted in order to achieve the optimal operation for each application.
The input selection includes analog port pins, several internal signals, and a 64-level programmable voltage scaler. The
analog comparator output state can also be output on a pin for use by external devices.
A constant current source can be enabled and output on a selectable pin. This can be used to replace, for example, external
resistors used to charge capacitors in capacitive touch sensing applications.
The analog comparators are always grouped in pairs on each port. These are called analog comparator 0 (AC0) and analog
comparator 1 (AC1). They have identical behavior, but separate control registers. Used as pair, they can be set in window
mode to compare a signal to a voltage range instead of a voltage level.
PORTA has one AC pair. Notation is ACA.
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Figure 25-1. Analog Comparator Overview
Pin Input
+
-
AC0OUT
AC0
Pin Input
Hysteresis
Interrupts
Events
Interrupt
Enable
Interrupt
Mode
Sensitivity
Control
and
Voltage
ACnMUXCTRL
Scaler
ACnCTRL
Enable
WINCTRL
Window
Function
Bandgap
Hysteresis
+
-
AC1OUT
Pin Input
AC1
Pin Input
The window function is realized by connecting the external inputs of the two analog comparators in a pair as shown in
Figure 25-2.
Figure 25-2. Analog Comparator Window Function
+
AC0
Upper limit of window
Interrupts
Events
-
Interrupt
Sensitivity
Control
Input Signal
+
-
AC1
Lower limit of window
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26. Programming and Debugging
26.1 Features
●
Programming
●
External programming through PDI interface
●
●
Minimal protocol overhead for fast operation
Built-in error detection and handling for reliable operation
●
Boot loader support for programming through any communication interface
●
Debugging
●
●
●
Nonintrusive, real-time, on-chip debug system
No software or hardware resources required from device except pin connection
Program flow control
●
Go, Stop, Reset, Step Into, Step Over, Step Out, Run-to-Cursor
●
●
Unlimited number of user program breakpoints
User data breakpoints, break on:
●
●
●
●
Data location read, write, or both read and write
Data location content equal or not equal to a value
Data location content is greater or smaller than a value
Data location content is within or outside a range
●
No limitation on device clock frequency
●
Program and Debug Interface (PDI)
●
●
●
Two-pin interface for external programming and debugging
Uses the Reset pin and a dedicated pin
No I/O pins required during programming or debugging
26.2 Overview
The Program and Debug Interface (PDI) is an Atmel proprietary interface for external programming and on-chip debugging
of a device.
The PDI supports fast programming of nonvolatile memory (NVM) spaces; flash, EEPOM, fuses, lock bits, and the user
signature row.
Debug is supported through an on-chip debug system that offers nonintrusive, real-time debug. It does not require any
software or hardware resources except for the device pin connection. Using the Atmel tool chain, it offers complete program
flow control and support for an unlimited number of program and complex data breakpoints. Application debug can be done
from a C or other high-level language source code level, as well as from an assembler and disassembler level.
Programming and debugging can be done through the PDI physical layer. This is a two-pin interface that uses the Reset pin
for the clock input (PDI_CLK) and one other dedicated pin for data input and output (PDI_DATA). Any external programmer
or on-chip debugger/emulator can be directly connected to this interface.
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27. Pinout and Pin Functions
The device pinout is shown in Section 1. “Pinout/Block Diagram” on page 3. In addition to general purpose I/O functionality,
each pin can have several alternate functions. This will depend on which peripheral is enabled and connected to the actual
pin. Only one of the pin functions can be used at time.
27.1 Alternate Pin Function Description
The tables below show the notation for all pin functions available and describe its function.
27.1.1 Operation/Power Supply
VCC
Digital supply voltage
Analog supply voltage
Ground
AVCC
GND
27.1.2 Port Interrupt Functions
SYNC
Port pin with full synchronous and limited asynchronous interrupt function
ASYNC
Port pin with full synchronous and full asynchronous interrupt function
27.1.3 Analog Functions
ACn
Analog comparator input pin n
Analog comparator n output
Analog to digital converter input pin n
Analog reference input pin
ACnOUT
ADCn
AREF
27.1.4 Timer/Counter and AWEX Functions
OCnxLS
OCnxHS
Output compare channel x low side for Timer/Counter n
Output compare channel x high side for Timer/Counter n
27.1.5 Communication Functions
SCL
Serial Clock for TWI
SDA
Serial Data for TWI
SCLIN
SCLOUT
SDAIN
SDAOUT
XCKn
RXDn
TXDn
SS
Serial Clock In for TWI when external driver interface is enabled
Serial Clock Out for TWI when external driver interface is enabled
Serial Data In for TWI when external driver interface is enabled
Serial Data Out for TWI when external driver interface is enabled
Transfer Clock for USART n
Receiver Data for USART n
Transmitter Data for USART n
Slave Select for SPI
MOSI
MISO
SCK
Master Out Slave In for SPI
Master In Slave Out for SPI
Serial Clock for SPI
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9322A–AVR–03/14
27.1.6 Oscillators, Clock and Event
TOSCn
XTALn
Timer Oscillator pin n
Input/Output for Oscillator pin n
Peripheral Clock Output
Event Channel Output
CLKOUT
EVOUT
RTCOUT
RTC Clock Source Output
27.1.7 Debug/System Functions
RESET
Reset pin
PDI_CLK
PDI_DATA
Program and Debug Interface Clock pin
Program and Debug Interface Data pin
27.2 Alternate Pin Functions
The tables below show the primary/default function for each pin on a port in the first column, the pin number in the second
column, and then all alternate pin functions in the remaining columns. The head row shows what peripheral that enable and
use the alternate pin functions.
For better flexibility, some alternate functions also have selectable pin locations for their functions, this is noted under the
first table where this apply.
Table 27-1. Port A - Alternate Functions
ADCA POS/
GAINPOS ADCA NEG GAINNEG ACA POS ACA NEG ACA OUT
ADCA
PORT A PIN # INTERRUPT
REFA
GND
AVCC
PA0
PA1
PA2
PA3
PA4
PA5
PA6
PA7
60
61
62
63
64
1
SYNC
SYNC
ADC0
ADC1
ADC2
ADC3
ADC4
ADC5
ADC6
ADC7
ADC0
ADC1
ADC2
ADC3
AC0
AC1
AC2
AC3
AC4
AC5
AC6
AC0
AC1
AREFA
SYNC/ASYNC
SYNC
AC3
AC5
AC7
2
SYNC
ADC4
ADC5
ADC6
ADC7
3
SYNC
4
SYNC
AC1OUT
AC0OUT
5
SYNC
46
ATxmega64D3 [DATASHEET]
9322A–AVR–03/14
Table 27-2. Port B - Alternate Functions
PORT B PIN # INTERRUPT ADCA POS
REFB
PB0
PB1
PB2
PB3
PB4
PB5
PB6
PB7
GND
VCC
6
6
SYNC
SYNC
ADC8
ADC9
AREFB
8
SYNC/ASYNC
SYNC
ADC10
ADC11
ADC12
ADC13
ADC14
ADC15
9
10
11
12
13
14
15
SYNC
SYNC
SYNC
SYNC
Table 27-3. Port C - Alternate Functions
PORT C PIN # INTERRUPT TCC0(1)(2) AWEXC TCC1 USARTC0(3) SPIC(4) TWIC CLOCKOUT(5) EVENTOUT(6)
PC0
PC1
PC2
PC3
PC4
PC5
PC6
PC7
GND
VCC
16
17
18
19
20
21
22
23
24
25
SYNC
SYNC
OC0A
OC0B
OC0C
OC0D
OC0ALS
SDA
SCL
OC0AHS
XCK0
RXD0
TXD0
SYNC/ASYNC
SYNC
OC0BLS
OC0BHS
SYNC
OC0CLS OC1A
OC0CHS OC1B
OC0DLS
SS
SYNC
MOSI
MISO
SCK
SYNC
RTCOUT
clkPER
SYNC
OC0DHS
EVOUT
Notes: 1. Pin mapping of all TC0 can optionally be moved to high nibble of port.
2. If TC0 is configured as TC2 all eight pins can be used for PWM output.
3. Pin mapping of all USART0 can optionally be moved to high nibble of port.
4. Pins MOSI and SCK for all SPI can optionally be swapped.
5. CLKOUT can optionally be moved between port C, D, and E and between pin 4 and 7.
6. EVOUT can optionally be moved between port C, D, and E and between pin 4 and 7.
Table 27-4. Port D - Alternate Functions
PORT D PIN # INTERRUPT
TCD0
OC0A
OC0B
OC0C
OC0D
USARTD0
SPID
CLOCKOUT
EVENTOUT
PD0
PD1
PD2
PD3
PD4
PD5
PD6
PD7
GND
VCC
26
27
28
29
30
31
32
33
34
35
SYNC
SYNC
XCK0
RXD0
TXD0
SYNC/ASYNC
SYNC
SYNC
SS
SYNC
MOSI
MISO
SCK
SYNC
SYNC
ClkPER
EVOUT
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9322A–AVR–03/14
Table 27-5. Port E - Alternate Functions
PORT E PIN # INTERRUPT TCE0
USARTE0
TOSC
TWIE
SDA
SCL
CLOCKOUT
EVENTOUT
PE0
PE1
PE2
PE3
PE4
PE5
PE6
PE7
GND
VCC
36
37
38
39
40
41
42
43
44
45
SYNC
SYNC
OC0A
OC0B
OC0C
OC0D
XCK0
RXD0
TXD0
SYNC/ASYNC
SYNC
SYNC
SYNC
SYNC
TOSC2
TOSC1
SYNC
ClkPER
EVOUT
Table 27-6. Port F - Alternate Functions
PORT F
PF0
PIN #
46
INTERRUPT
SYNC
TCF0
OC0A
OC0B
OC0C
OC0D
PF1
47
SYNC
PF2
48
SYNC/ASYNC
SYNC
PF3
49
PF4
50
SYNC
PF5
51
SYNC
PF6
54
SYNC
PF7
55
SYNC
GND
VCC
52
53
Table 27-7. Port R - Alternate Functions
PORT R
PDI
PIN #
56
INTERRUPT
PDI
XTAL
PDI_DATA
RESET
PR0
57
PDI_CLOCK
58
SYNC
SYNC
XTAL2
XTAL1
PR1
59
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ATxmega64D3 [DATASHEET]
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28. Peripheral Module Address Map
The address maps show the base address for each peripheral and module in Atmel AVR XMEGA D3. For complete register
description and summary for each peripheral module, refer to the XMEGA D manual.
Table 28-1. Peripheral Module Address Map
Base Address
0x0000
0x0010
0x0014
0x0018
0x001C
0x0030
0x0040
0x0048
0x0050
0x0060
0x0068
0x0070
0x0078
0x0080
0x0090
0x00A0
0x00B0
0x00D0
0x0180
0x01C0
0x0200
0x0380
0x0400
0x0480
0x04A0
0x0600
0x0620
0x0640
0x0660
0x0680
0x06A0
0x07E0
0x0800
0x0840
0x0880
0x0890
0x08A0
0x08C0
Name
GPIO
Description
General Purpose IO Registers
Virtual Port 0
VPORT0
VPORT1
VPORT2
VPORT3
CPU
Virtual Port 1
Virtual Port 2
Virtual Port 2
CPU
CLK
Clock Control
SLEEP
OSC
Sleep Controller
Oscillator Control
DFLLRC32M
DFLLRC2M
PR
DFLL for the 32MHz Internal Oscillator
DFLL for the 2MHz Internal Oscillator
Power Reduction
RST
Reset Controller
WDT
Watchdog Timer
MCU
MCU Control
PMIC
Programmable Multilevel Interrupt Controller
Port Configuration
PORTCFG
CRC
CRC Module
EVSYS
NVM
Event System
Non Volatile Memory (NVM) Controller
Analog to Digital Converter on port A
Analog Comparator pair on port A
Real-Time Counter
Two-Wire Interface on port C
Two-Wire Interface on port E
Port A
ADCA
ACA
RTC
TWIC
TWIE
PORTA
PORTB
PORTC
PORTD
PORTE
PORTF
PORTR
TCC0
Port B
Port C
Port D
Port E
Port F
Port R
Timer/Counter 0 on port C
Timer/Counter 1 on port C
Advanced Waveform Extension on port C
High Resolution Extension on port C
USART 0 on port C
Serial Peripheral Interface on port C
TCC1
AWEXC
HIRESC
USARTC0
SPIC
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9322A–AVR–03/14
Table 28-1. Peripheral Module Address Map (Continued)
Base Address
0x08F8
Name
IRCOM
TCD0
Description
Infrared Communication Module
Timer/Counter 0 on port D
0x0900
0x09A0
USARTD0
SPID
USART 0 on port D
0x09C0
0x0A00
Serial Peripheral Interface on port D
Timer/Counter 0 on port E
TCE0
0x0A80
AWEXE
USARTE0
SPIE
Advanced Waveform Extension on port E
USART 0 on port E
0x0AA0
0x0AC0
0x0B00
Serial Peripheral Interface on port E
Timer/Counter 0 on port F
TCF0
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ATxmega64D3 [DATASHEET]
9322A–AVR–03/14
29. Instruction Set Summary
Mnemonics
Operands
Description
Operation
Flags
#Clocks
Arithmetic and logic instructions
ADD
ADC
ADIW
SUB
SUBI
SBC
Rd, Rr
Rd, Rr
Rd, K
Rd, Rr
Rd, K
Rd, Rr
Rd, K
Rd, K
Rd, Rr
Rd, K
Rd, Rr
Rd, K
Rd, Rr
Rd
Add without Carry
Rd
Rd
Rd + Rr
Z,C,N,V,S,H
Z,C,N,V,S,H
Z,C,N,V,S
Z,C,N,V,S,H
Z,C,N,V,S,H
Z,C,N,V,S,H
Z,C,N,V,S,H
Z,C,N,V,S
Z,N,V,S
Z,N,V,S
Z,N,V,S
Z,N,V,S
Z,N,V,S
Z,C,N,V,S
Z,C,N,V,S,H
Z,N,V,S
Z,N,V,S
Z,N,V,S
Z,N,V,S
Z,N,V,S
Z,N,V,S
None
1
1
2
1
1
1
1
2
1
1
1
1
1
1
1
1
1
1
1
1
1
1
2
2
2
2
2
Add with Carry
Rd + Rr + C
Rd + 1:Rd + K
Rd - Rr
Add Immediate to Word
Subtract without Carry
Subtract Immediate
Subtract with Carry
Subtract Immediate with Carry
Subtract Immediate from Word
Logical AND
Rd
Rd
Rd
Rd - K
Rd
Rd - Rr - C
Rd - K - C
Rd + 1:Rd - K
Rd Rr
SBCI
SBIW
AND
ANDI
OR
Rd
Rd + 1:Rd
Rd
Logical AND with Immediate
Logical OR
Rd
Rd K
Rd
Rd v Rr
ORI
Logical OR with Immediate
Exclusive OR
Rd
Rd v K
EOR
COM
NEG
SBR
Rd
Rd Rr
One’s Complement
Two’s Complement
Set Bit(s) in Register
Clear Bit(s) in Register
Increment
Rd
$FF - Rd
Rd
Rd
$00 - Rd
Rd, K
Rd, K
Rd
Rd
Rd v K
CBR
INC
Rd
Rd ($FFh - K)
Rd + 1
Rd
DEC
TST
Rd
Decrement
Rd
Rd - 1
Rd
Test for Zero or Minus
Clear Register
Rd
Rd Rd
CLR
Rd
Rd
Rd Rd
SER
Rd
Set Register
Rd
$FF
MUL
MULS
MULSU
FMUL
FMULS
Rd, Rr
Rd, Rr
Rd, Rr
Rd, Rr
Rd, Rr
Multiply Unsigned
R1:R0
R1:R0
R1:R0
R1:R0
R1:R0
Rd x Rr (UU)
Rd x Rr (SS)
Rd x Rr (SU)
Rd x Rr<<1 (UU)
Rd x Rr<<1 (SS)
Z,C
Multiply Signed
Z,C
Multiply Signed with Unsigned
Fractional Multiply Unsigned
Fractional Multiply Signed
Z,C
Z,C
Z,C
Fractional Multiply Signed with
Unsigned
FMULSU
Rd, Rr
R1:R0
Rd x Rr<<1 (SU)
Z,C
2
Branch instructions
RJMP
IJMP
k
Relative Jump
PC
PC + k + 1
None
None
2
2
PC(15:0)
PC(21:16)
Z,
0
Indirect Jump to (Z)
PC(15:0)
PC(21:16)
Z,
EIND
EIJMP
Extended Indirect Jump to (Z)
None
2
JMP
k
k
Jump
PC
PC
k
None
None
3
RCALL
Relative Call Subroutine
PC + k + 1
2 / 3(1)
PC(15:0)
PC(21:16)
Z,
0
ICALL
Indirect Call to (Z)
None
None
2 / 3(1)
3(1)
PC(15:0)
Z,
EIND
EICALL
Extended Indirect Call to (Z)
PC(21:16)
Notes: 1. Cycle times for data memory accesses assume internal memory accesses, and are not valid for accesses via the exter-
nal RAM interface if available.
2. One extra cycle must be added when accessing internal SRAM.
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9322A–AVR–03/14
29. Instruction Set Summary (Continued)
Mnemonics
CALL
RET
Operands
Description
Operation
Flags
#Clocks
3 / 4(1)
4 / 5(1)
4 / 5(1)
1 / 2 / 3
1
k
call Subroutine
PC
PC
k
None
None
I
Subroutine Return
STACK
STACK
PC + 2 or 3
RETI
Interrupt Return
PC
CPSE
CP
Rd, Rr
Compare, Skip if Equal
Compare
if (Rd = Rr) PC
None
Z,C,N,V,S,H
Z,C,N,V,S,H
Z,C,N,V,S,H
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
Rd, Rr
Rd - Rr
CPC
Rd, Rr
Compare with Carry
Rd - Rr - C
1
CPI
Rd, K
Compare with Immediate
Skip if Bit in Register Cleared
Skip if Bit in Register Set
Skip if Bit in I/O Register Cleared
Skip if Bit in I/O Register Set
Branch if Status Flag Set
Branch if Status Flag Cleared
Branch if Equal
Rd - K
1
SBRC
SBRS
SBIC
Rr, b
if (Rr(b) = 0) PC
if (Rr(b) = 1) PC
if (I/O(A,b) = 0) PC
If (I/O(A,b) =1) PC
if (SREG(s) = 1) then PC
if (SREG(s) = 0) then PC
if (Z = 1) then PC
if (Z = 0) then PC
if (C = 1) then PC
if (C = 0) then PC
if (C = 0) then PC
if (C = 1) then PC
if (N = 1) then PC
if (N = 0) then PC
if (N V= 0) then PC
if (N V= 1) then PC
if (H = 1) then PC
if (H = 0) then PC
if (T = 1) then PC
if (T = 0) then PC
if (V = 1) then PC
if (V = 0) then PC
if (I = 1) then PC
if (I = 0) then PC
PC + 2 or 3
PC + 2 or 3
PC + 2 or 3
PC + 2 or 3
PC + k + 1
PC + k + 1
PC + k + 1
PC + k + 1
PC + k + 1
PC + k + 1
PC + k + 1
PC + k + 1
PC + k + 1
PC + k + 1
PC + k + 1
PC + k + 1
PC + k + 1
PC + k + 1
PC + k + 1
PC + k + 1
PC + k + 1
PC + k + 1
PC + k + 1
PC + k + 1
1 / 2 / 3
1 / 2 / 3
2 / 3 / 4
2 / 3 / 4
1 / 2
Rr, b
A, b
A, b
s, k
s, k
k
SBIS
BRBS
BRBC
BREQ
BRNE
BRCS
BRCC
BRSH
BRLO
BRMI
BRPL
BRGE
BRLT
BRHS
BRHC
BRTS
BRTC
BRVS
BRVC
BRIE
1 / 2
1 / 2
k
Branch if Not Equal
1 / 2
k
Branch if Carry Set
1 / 2
k
Branch if Carry Cleared
Branch if Same or Higher
Branch if Lower
1 / 2
k
1 / 2
k
1 / 2
k
Branch if Minus
1 / 2
k
Branch if Plus
1 / 2
k
Branch if Greater or Equal, Signed
Branch if Less Than, Signed
Branch if Half Carry Flag Set
Branch if Half Carry Flag Cleared
Branch if T Flag Set
1 / 2
k
1 / 2
k
1 / 2
k
1 / 2
k
1 / 2
k
Branch if T Flag Cleared
Branch if Overflow Flag is Set
Branch if Overflow Flag is Cleared
Branch if Interrupt Enabled
Branch if Interrupt Disabled
1 / 2
k
1 / 2
k
1 / 2
k
1 / 2
BRID
k
1 / 2
Data transfer instructions
MOV
MOVW
LDI
Rd, Rr
Rd, Rr
Rd, K
Rd, k
Copy Register
Rd
Rr
None
None
None
None
None
1
1
Copy Register Pair
Load Immediate
Rd+1:Rd
Rr+1:Rr
Rd
Rd
Rd
Rd
X
K
1
LDS
LD
Load Direct from data space
Load Indirect
(k)
(X)
2(1)(2)
1(1)(2)
Rd, X
(X)
X + 1
LD
Rd, X+
Load Indirect and Post-Increment
None
1(1)(2)
X X - 1,
Rd (X)
X - 1
(X)
LD
LD
Rd, -X
Rd, Y
Load Indirect and Pre-Decrement
Load Indirect
None
None
2(1)(2)
Rd (Y)
(Y)
1 (1)(2)
Notes: 1. Cycle times for data memory accesses assume internal memory accesses, and are not valid for accesses via the exter-
nal RAM interface if available.
2. One extra cycle must be added when accessing internal SRAM.
52
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29. Instruction Set Summary (Continued)
Mnemonics
Operands
Description
Operation
Flags
#Clocks
Rd
Y
(Y)
Y + 1
LD
Rd, Y+
Load Indirect and Post-Increment
None
1(1)(2)
Y
Rd
Y - 1
(Y)
LD
Rd, -Y
Load Indirect and Pre-Decrement
None
2(1)(2)
LDD
LD
Rd, Y+q
Rd, Z
Load Indirect with Displacement
Load Indirect
Rd
Rd
(Y + q)
(Z)
None
None
2(1)(2)
1(1)(2)
Rd
Z
(Z),
Z+1
LD
LD
Rd, Z+
Rd, -Z
Load Indirect and Post-Increment
Load Indirect and Pre-Decrement
None
None
1(1)(2)
Z
Rd
Z - 1,
(Z)
2(1)(2)
2(1)(2)
2(1)
LDD
STS
ST
Rd, Z+q
k, Rr
Load Indirect with Displacement
Store Direct to Data Space
Store Indirect
Rd
(k)
(X)
(Z + q)
Rd
None
None
None
X, Rr
Rr
1(1)
(X)
X
Rr,
X + 1
ST
X+, Rr
Store Indirect and Post-Increment
None
1(1)
X
(X)
X - 1,
Rr
ST
ST
ST
-X, Rr
Y, Rr
Store Indirect and Pre-Decrement
Store Indirect
None
None
None
2(1)
1(1)
1(1)
(Y)
Rr
(Y)
Y
Rr,
Y + 1
Y+, Rr
Store Indirect and Post-Increment
Y
(Y)
Y - 1,
Rr
ST
-Y, Rr
Store Indirect and Pre-Decrement
None
2(1)
STD
ST
Y+q, Rr
Z, Rr
Store Indirect with Displacement
Store Indirect
(Y + q)
(Z)
Rr
Rr
None
None
2(1)
1(1)
(Z)
Z
Rr
Z + 1
ST
Z+, Rr
Store Indirect and Post-Increment
None
1(1)
ST
-Z, Rr
Store Indirect and Pre-Decrement
Store Indirect with Displacement
Load Program Memory
Z
(Z + q)
R0
Z - 1
Rr
None
None
None
None
2(1)
2(1)
3
STD
LPM
LPM
Z+q, Rr
(Z)
Rd, Z
Load Program Memory
Rd
(Z)
3
Load Program Memory and Post-
Increment
Rd
Z
(Z),
Z + 1
LPM
Rd, Z+
None
3
ELPM
ELPM
Extended Load Program Memory
Extended Load Program Memory
R0
Rd
(RAMPZ:Z)
(RAMPZ:Z)
None
None
3
3
Rd, Z
Extended Load Program Memory and
Post-Increment
Rd
Z
(RAMPZ:Z),
Z + 1
ELPM
SPM
SPM
Rd, Z+
None
None
None
3
-
Store Program Memory
(RAMPZ:Z)
R1:R0
Store Program Memory and Post-
Increment by 2
(RAMPZ:Z)
Z
R1:R0,
Z + 2
Z+
-
IN
Rd, A
A, Rr
Rr
In From I/O Location
Out To I/O Location
Rd
I/O(A)
STACK
Rd
I/O(A)
Rr
None
None
None
None
1
OUT
PUSH
POP
1
Push Register on Stack
Pop Register from Stack
Rr
1(1)
2(1)
Rd
STACK
Notes: 1. Cycle times for data memory accesses assume internal memory accesses, and are not valid for accesses via the exter-
nal RAM interface if available.
2. One extra cycle must be added when accessing internal SRAM.
ATxmega64D3 [DATASHEET]
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29. Instruction Set Summary (Continued)
Mnemonics
Operands
Description
Operation
Flags
#Clocks
Bit and bit-test instructions
Rd(n+1)
Rd(0)
C
Rd(n),
0,
Rd(7)
LSL
Rd
Rd
Rd
Rd
Logical Shift Left
Z,C,N,V,H
Z,C,N,V
1
1
1
1
Rd(n)
Rd(7)
C
Rd(n+1),
0,
Rd(0)
LSR
ROL
ROR
Logical Shift Right
Rd(0)
Rd(n+1)
C
C,
Rd(n),
Rd(7)
Rotate Left Through Carry
Rotate Right Through Carry
Z,C,N,V,H
Z,C,N,V
Rd(7)
Rd(n)
C
C,
Rd(n+1),
Rd(0)
ASR
SWAP
BSET
BCLR
SBI
Rd
Arithmetic Shift Right
Swap Nibbles
Rd(n)
Rd(n+1), n=0..6
Z,C,N,V
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Rd
Rd(3..0)
Rd(7..4)
None
s
Flag Set
SREG(s)
1
SREG(s)
s
Flag Clear
SREG(s)
0
SREG(s)
A, b
A, b
Rr, b
Rd, b
Set Bit in I/O Register
Clear Bit in I/O Register
Bit Store from Register to T
Bit load from T to Register
Set Carry
I/O(A, b)
1
None
CBI
I/O(A, b)
0
None
BST
BLD
SEC
CLC
SEN
CLN
SEZ
CLZ
SEI
T
Rr(b)
T
1
T
Rd(b)
C
C
N
N
Z
None
C
C
N
N
Z
Clear Carry
0
Set Negative Flag
1
Clear Negative Flag
Set Zero Flag
0
1
Clear Zero Flag
Z
0
Z
Global Interrupt Enable
Global Interrupt Disable
Set Signed Test Flag
Clear Signed Test Flag
Set Two’s Complement Overflow
Clear Two’s Complement Overflow
Set T in SREG
I
1
I
CLI
I
0
I
SES
CLS
SEV
CLV
SET
CLT
S
1
S
S
V
V
T
S
0
V
1
V
0
T
1
Clear T in SREG
T
0
T
SEH
CLH
Set Half Carry Flag in SREG
Clear Half Carry Flag in SREG
H
H
1
H
H
0
MCU control instructions
BREAK
NOP
Break
(See specific descr. for BREAK)
None
None
None
None
1
1
1
1
No Operation
Sleep
SLEEP
WDR
(See specific descr. for Sleep)
(See specific descr. for WDR)
Watchdog Reset
Notes: 1. Cycle times for data memory accesses assume internal memory accesses, and are not valid for accesses via the exter-
nal RAM interface if available.
2. One extra cycle must be added when accessing internal SRAM.
54
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30. Electrical Characteristics
All typical values are measured at T = 25C unless other temperature condition is given. All minimum and maximum values
are valid across operating temperature and voltage unless other conditions are given.
30.1 Atmel ATxmega64D3
30.1.1 Absolute Maximum Ratings
Stresses beyond those listed in Table 30-1 under may cause permanent damage to the device. This is a stress rating only
and functional operation of the device at these or other conditions beyond those indicated in the operational sections of this
specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device
reliability.
Table 30-1. Absolute Maximum Ratings
Parameter
Condition
Symbol
VCC
Min.
Typ.
Max.
4
Unit
V
Power supply voltage
–0.3
Current into a VCC pin
Current out of a Gnd pin
Pin voltage with respect to Gnd and VCC
I/O pin sink/source current
Storage temperature
IVCC
IGND
VPIN
IPIN
200
mA
mA
V
200
–0.5
–25
–65
VCC + 0.5
25
mA
°C
TA
150
30.1.2 General Operating Ratings
The device must operate within the ratings listed in Table 30-2 in order for all other electrical characteristics and typical
characteristics of the device to be valid.
Table 30-2. General Operating Conditions
Parameter
Condition
Symbol
VCC
Min.
2.7
Typ.
Max.
3.6
Unit
V
Power supply voltage
Analog supply voltage
Temperature range
AVCC
TA
2.7
3.6
V
–40
105
°C
Table 30-3. Operating Voltage and Frequency
Parameter
Condition
Symbol
Min.
Typ.
Max.
32
Unit
VCC = 2.7V
VCC = 3.6V
0
0
CPU clock frequency
ClkCPU
MHz
32
ATxmega64D3 [DATASHEET]
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9322A–AVR–03/14
Figure 30-1. Maximum Frequency versus VCC
MHz
32
Safe operating
area
2.7V
3.6
V
30.1.3 Current Consumption
Table 30-4. Current Consumption for Active Mode and Sleep Modes
Parameter
Condition
Symbol Min.
Typ. Max. Unit
32kHz, external Clk
32MHz, external Clk
32kHz, external Clk
32MHz, external Clk
T = 25°C
130
8
220
12
31
6
µA
mA
µA
Active power
VCC = 3.0V
VCC = 3.0V
ICC
consumption(1)
7
Idle power
ICC
consumption(1)
3
mA
0.2
4
1.0
12
T = 105°C
WDT and sampled
BOD enabled,
T = 25°C
Power-down power
consumption
1.5
5
2.0
14
VCC = 3.0V
ICC
µA
WDT and sampled
BOD enabled,
T = 105°C
RTC from ULP clock,
WDT and sampled
BOD enabled,
VCC = 3.0V
VCC = 3.0V
1.8
0.8
T = 25°C
RTC from 1.024kHz
low power
32.768kHz TOSC,
T = 25°C
Power-save power
consumption(2)
ICC
µA
µA
4.0
4.0
RTC from low power
32.768kHz TOSC,
T = 25°C
VCC = 3.0V
VCC = 3.0V
1.0
Current through
RESET pin
substracted
Reset power
consumption
ICC
120
Notes: 1. All Power Reduction Registers set.
2. Maximum limits are based on characterization, and not tested in production.
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ATxmega64D3 [DATASHEET]
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Table 30-5. Current Consumption for Modules and Peripherals
Parameter
Condition(1)
Symbol
Min.
Typ.
0.9
29
Max.
Unit
ULP oscillator
32.768kHz int. oscillator
82
2MHz int. oscillator
32MHz int. oscillator
DFLL enabled with 32.768kHz int. osc. as
reference
114
250
400
DFLL enabled with 32.768kHz int. osc. as
reference
µA
20× multiplication factor,
32MHz int. osc. DIV4 as reference
PLL
300
Watchdog timer
1.0
140
1.4
Continuous mode
ICC
BOD
Sampled mode, includes ULP oscillator
Internal 1.0V reference
180
1.23
1.1
CURRLIMIT = LOW
CURRLIMIT = MEDIUM
CURRLIMIT = HIGH
16ksps
VREF = Ext. ref.
0.98
0.87
ADC
mA
mA
75ksps
VREF = Ext. ref.
CURRLIMIT = LOW
1.7
300ksps
VREF = Ext. ref.
3.1
5
Flash memory and EEPROM programming
11
Note:
1. All parameters measured as the difference in current consumption between module enabled and disabled. All
data at VCC = 3.0V, ClkSYS = 1MHz external clock without prescaling, T = 25°C unless other conditions are
given.
ATxmega64D3 [DATASHEET]
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30.1.4 Wake-up Time from Sleep Modes
Table 30-6. Device Wake-up Time from Sleep Modes with Various System Clock Sources
Parameter
Condition
Symbol
Min.
Typ.(1)
2.0
Max.
Unit
External 2MHz clock
Wake-up time from idle,
standby, and extended
standby mode
32.768kHz internal oscillator
2MHz internal oscillator
32MHz internal oscillator
External 2MHz clock
125
2.0
0.2
twakeup
µs
4.6
32.768kHz internal oscillator
2MHz internal oscillator
32MHz internal oscillator
330
9.5
Wake-up time from power-
save and power-down mode
5.6
Note:
1. The wake-up time is the time from the wake-up request is given until the peripheral clock is available on pin,
see Figure 30-2. All peripherals and modules start execution from the first clock cycle, expect the CPU that is
halted for four clock cycles before program execution starts. This is guaranteed by design.
Figure 30-2. Wake-up Time Definition
Wakeup Time
Wakeup request
Clock output
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30.1.5 I/O Pin Characteristics
The I/O pins complies with the JEDEC LVTTL and LVCMOS specification and the high- and low level input and output
voltage limits reflect or exceed this specification.
Table 30-7. I/O Pin Characteristics
Parameter
Condition
Symbol
Min.
–15
Typ.
Max.
15
Unit
mA
V
(2)
I/O pin source/sink current
High level input voltage
Low level input voltage
IOH(1)/ IOL
VCC = 2.7V - 3.6V
VCC = 2.7V - 3.6V
VCC = 3.3V
VIH
0.7 VCC
VCC + 0.5
0.3 VCC
VIL
V
IOH = -4mA
IOH = -3mA
IOL = 8mA
IOL = 5mA
2.6
2.1
2.9
2.6
High level output voltage
Low level output voltage
VOH
V
V
VCC = 3.0V
VCC = 3.3V
0.4
0.76
0.64
1
VOL
VCC = 3.0V
0.3
Input leakage current I/O pin T = 25°C
Pull/buss keeper resistor
IIN
<0.01
27
µA
RP
20
40
k
Notes: 1. The sum of all IOH for PORTA and PORTB must not exceed 100mA.
The sum of all IOH for PORTC, PORTD, PORTE must for each port not exceed 200mA.
The sum of all IOH for pins PF[0-5] on PORTF must not exceed 200mA.
The sum of all IOL for pins PF[6-7] on PORTF, PORTR and PDI must not exceed 100mA.
2. The sum of all IOL for PORTA and PORTB must not exceed 100mA.
The sum of all IOL for PORTC, PORTD, PORTE must for each port not exceed 200mA.
The sum of all IOL for pins PF[0-5] on PORTF must not exceed 200mA.
The sum of all IOL for pins PF[6-7] on PORTF, PORTR and PDI must not exceed 100mA.
30.1.6 ADC Characteristics
Table 30-8. Power Supply, Reference and Input Range
Parameter
Condition
Symbol
Min.
Typ.
Max.
Unit
VCC – 0.3
or 2.7V
Analog supply voltage
AVCC
VCC + 0.3
V
Reference voltage
Input resistance
Input capacitance
VREF
Rin
1
AVCC – 0.6
Switched
Switched
4.5
5
k
pF
Cin
Reference input resistance (leakage only)
Reference input capacitance Static load
Input range
RAREF
CAREF
Vin
>10
7
M
pF
0
VREF
Conversion range
Conversion range
Fixed offset voltage
Differential mode, Vinp - Vinn
–VREF/GAIN
VREF/GAIN
V
VREF/GAIN
– V
Single ended unsigned mode, Vinp
–V
V
200
lsb
Notes: 1. Maximum input common mode voltage for VREF > 1V is (AVCC – 2.7)+1.8
2. Maximum input common mode voltage for VREF = 1.0V is 1.33 (AVCC – 2.7) + 2.1
ATxmega64D3 [DATASHEET]
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Table 30-9. Clock and Timing
Parameter
Condition
Symbol
Min.
Typ.
Max.
Unit
Maximum is 1/4 of peripheral clock
frequency
100
1800
ADC clock frequency
ClkADC
kHz
Measuring internal signals
Free running
100
16
16
16
16
16
16
125
300
250
300
250
150
50
fClkADC
fClkADC
Single shot
Current limitation (CURRLIMIT) off
CURRLIMIT = LOW
CURRLIMIT = MEDIUM
CURRLIMIT = HIGH
Sample rate
ksps
µs
fADC
Configurable in steps of 1/2 ClkADC cycle
up to 32 ClkADC cycles
Sampling time
1.67
5.5
320
10
(RES+2)/2 + 1 + GAIN
RES (Resolution) = 8 or 12, GAIN = 0 to 3
Conversion time (latency)
ClkADC
cycles
Start-up time
ADC clock cycles
12
7
24
7
ADC settling time
After changing reference or input mode
Table 30-10. Accuracy Characteristics: Differential Mode
Parameter(1)
Condition
Symbol
Min.
Typ.
Max.
12
Unit
Resolution
RES
8
Bit
16ksps, VREF = 3V – 1X
16ksps, all VREF – 1X
300ksps, VREF = 3V – 1X
300ksps, all VREF – 1X
16ksps, VREF = 3V – 1X
16ksps, all VREF – 1X
300ksps, VREF = 3V – 1X
300ksps, all VREF – 1X
External reference
AVCC/1.6
0.6
1.0
1.1
1.5
0.6
1.7
Integral non linearity
INL
LSB
LSB
0.5
0.8
1.5
0.5
0.9
2.0
±0.6
±0.6
±0.4
±0.4
–30
–50
–50
–80
±0.9
±0.15
±0.05
–5.0
–5.0
–5.0
–5.0
±0.8
±0.7
±0.5
±0.6
–5
±0.95
±0.95
±0.95
±0.95
+10
Differential non
linearity(2)
DNL
–20
–25
–40
±1.5
±0.3
±0.1
+0.7
+1.0
+1.0
+1.0
–10
Gain error
Gain accuracy
Offset error
mV
%
AVCC/2.0
–15
Bandgap
–15
External reference 0.5X
External reference 2X to 16X
External reference 32X to 64X
External reference
AVCC/1.6
±2.0
±0.45
±0.5
+10.0
+10.0
+10.0
+10.0
mV
AVCC/2.0
Bandgap
Notes: 1. Maximum numbers are based on characterisation and not tested in production, and valid for –90% to +90%
input voltage range.
2. The step errors are calculated in averaging the ADC samples 8 times.
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ATxmega64D3 [DATASHEET]
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Table 30-11. Accuracy Characteristics: Single-ended Mode
Parameter(1)
Condition
Symbol
Min.
8
Typ.
Max.
12
Unit
Resolution
RES
Bit
VREF = 3V – 1X
All VREF – 1X
VREF = 3V – 1X
All VREF – 1X
External reference
AVCC/1.6
0.8
2.1
2.5
6.0
Integral non linearity
INL
LSB
LSB
1.0
8.0
±0.5
±0.4
–20.0
–30.0
–30.0
–50.0
1.0
±0.8
±0.9
–10.0
–15.0
–15.0
–25.0
10.0
10.0
10.0
10.0
±0.95
±0.95
–5.0
–5.0
–7.0
–10.0
25.0
20.0
20.0
15.0
Differential non
linearity(2)
DNL
Gain error
mV
mV
AVCC/2.0
Bandgap
External reference
AVCC/1.6
3.0
Offset error
AVCC/2.0
3.0
Bandgap
3.0
Notes: 1. Maximum numbers are based on characterisation and not tested in production, and valid for V to 90% input
voltage range.
2. The step errors are calculated in averaging the ADC samples 8 times.
Table 30-12. Accuracy Characteristics: Differential Mode 0.5X Gain
Parameter(1)
Condition
Symbol
Min.
Typ.
Max.
Unit
Resolution
RES
12
Bit
–2
VREF
Conversion range
+2 VREF
V
16ksps, all VREF – 0.5X
300ksps, all VREF – 0.5X
16ksps, all VREF – 0.5X
300ksps, all VREF – 0.5X
External reference
1.3
0.46
±0.8
±0.45
–30
1.9
0.65
±0.9
±0.6
–15
–10
2.3
1.5
Integral non linearity
INL
LSB
±0.95
±0.95
–10
Differential non
linearity(2)
DNL
LSB
mV
Gain error 0.5X
Offset error 0.5X
External reference
–40
+40
Notes: 1. Maximum numbers are based on characterisation and not tested in production, and valid for –90% to 90%
input voltage range.
2. The step errors are calculated in averaging the ADC samples 8 times
Table 30-13. Gain Stage Characteristics
Parameter
Condition
Symbol
Min.
Typ.
4.0
Max.
Unit
k
Input resistance
Input capacitance
Switched in normal mode
Rin
Switched in normal mode Csample
4.4
pF
AVCC
0.6
–
Signal range
Gain stage output
0
V
Propagation delay
Clock frequency
ADC conversion rate
Same as ADC
1/2
1
3
ClkADC cycles
kHz
100
1800
ATxmega64D3 [DATASHEET]
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9322A–AVR–03/14
30.1.7 Analog Comparator Characteristics
Table 30-14. Analog Comparator Characteristics
Parameter
Condition
Symbol
Voff
Min.
Typ.
+10
<10
Max.
+52
50
Unit
mV
nA
V
Input offset voltage
Input leakage current
Input voltage range
AC start-up time
Hysteresis, none
Hysteresis, small
Hysteresis, large
–26
Ilk
–0.1
AVCC
50(1)
0
µs
VCC = 3V at 25°C
VCC = 3V at 25°C
VCC = 3V at 25°C
Vhys1
Vhys2
Vhys3
15
30
mV
VCC = 2.7V - 3.6V,
T = –40°C to +105°C
Propagation delay
tdelay
20
0.3
5
31
ns
Integral non-linearity
(INL)
64-level voltage scaler
0.5
lsb
Current source accuracy after
calibration
%
Current source calibration range
Single mode
4
6
µA
Note:
30.1.8 Bandgap and Internal 1.0V Reference Characteristics
Table 30-15. Bandgap and Internal 1.0V Reference Characteristics
1. Guaranteed by design.
Parameter
Condition
Symbol Min.
Typ.
Max.
Unit
As reference for ADC
As input voltage to ADC and AC
1 ClkPER + 2.5µs
µs
µs
V
Start-up time
1.5
1.1
1
Bandgap voltage
Internal 1.00V reference
T = 25°C, after calibration
Calibrated at T = 25°C
INT1V
0.99
1.01
V
Variation over voltage and
temperature
2
%
30.1.9 Brownout Detection Characteristics
Table 30-16. Brownout Detection Characteristics(1)
Parameter
Condition
Symbol Min.
Typ.
2.6
2.8(2)
3.0(2)
0.4
Max.
Unit
V
BOD level 5 falling VCC
BOD level 6 falling VCC
BOD level 7 falling VCC
VBOT
VBOT
VBOT
tBOD
2.4
2.8
V
V
Continuous mode
Sampled mode
5
µs
µs
%
Detection time
Hysteresis
tBOD
1000
1.0
VHYST
Notes: 1. BOD is calibrated at 25°C BOD level 5 is the default level.
2. Characterized but not tested.
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30.1.10 External Reset Characteristics
Table 30-17. External Reset Characteristics
Parameter
Condition
Symbol
tEXT
Min.
Typ.
90
Max.
Unit
ns
Minimum reset pulse width
Reset threshold voltage
Reset pin pull-up resistor
1000
VCC = 2.7 - 3.6V
VRST
0.45 VCC
25
V
RRST
15
35
k
30.1.11 Power-on Reset Characteristics
Table 30-18. Power-on Reset Characteristics
Parameter
Condition
Symbol
Min.
0.4
Typ.
1.0
Max.
Unit
VCC falls faster than 1V/ms
VCC falls at 1V/ms or slower
POR threshold voltage falling
VCC
(1)
VPOT-
0.8
1.3
V
POR threshold voltage rising
VCC
VPOT+
1.3
1.59
Note:
1.
VPOT- values are only valid when BOD is disabled. When BOD is enabled VPOT- = VPOT+.
30.1.12 Flash and EEPROM Memory Characteristics
Table 30-19. Endurance and Data Retention
Parameter
Condition
Symbol
Min.
10K
2K
Typ.
Max.
Unit
25°C
Write/erase cycles
Data retention
Cycle
105°C
25°C
Flash
100
10
Year
Cycle
Year
105°C
25°C
100K
30K
100
10
Write/erase cycles
Data retention
105°C
25°C
EEPROM
105°C
Table 30-20. Programming Time
Parameter
Condition
Symbol
Min.
Typ.(1)
Max.
Unit
Chip erase(2)
64KB Flash, EEPROM
Section erase
Page erase
55
6
Application erase
4
Flash
Page write
4
ms
Atomic page erase and write
Page erase
8
4
EEPROM
Page write
4
Atomic page erase and write
8
Notes: 1. Programming is timed from the 2MHz internal oscillator. Minimum and maximum times will be affected
accordingly.
2. EEPROM is not erased if the EESAVE fuse is programmed.
ATxmega64D3 [DATASHEET]
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30.1.13 Clock and Oscillator Characteristics
30.1.13.1 Calibrated 32.768kHz Internal Oscillator Characteristics
Table 30-21. 32.768kHz Internal Oscillator Characteristics
Parameter
Condition
Symbol
Min.
Typ.
Max.
Unit
Frequency
T = 25C, VCC = 3.0V
32.768
kHz
T = –40C to +105°C,
VCC = 2.7 V to 3.6V
–5
+5
Factory calibration accuracy
User calibration accuracy
%
T = 25C, VCC = 3.0V
–1.0
–0.5
+1.0
+0.5
30.1.13.2 Calibrated 2MHz RC Internal Oscillator Characteristics
Table 30-22. 2MHz Internal Oscillator Characteristics
Parameter
Condition
Symbol
Min.
Typ.
2.0
Max.
Unit
DFLL can tune to this frequency
over voltage and temperature
Frequency range
1.8
2.3
MHz
Factory calibrated frequency
2.0
T = –40C to +105°C,
VCC = 2.7 V to 3.6V
–14
+14
Factory calibration accuracy
T = 25C, VCC = 3.0V
–2.0
–0.2
+2.0
+0.2
%
User calibration accuracy
DFLL calibration step size
0.18
30.1.13.3 Calibrated 32MHz Internal Oscillator Characteristics
Table 30-23. 32MHz Internal Oscillator Characteristics
Parameter
Condition
Symbol
Min.
Typ.
32
Max.
Unit
DFLL can tune to this frequency
over voltage and temperature
Frequency range
30
55
MHz
Factory calibrated frequency
32
T = –40C to +105°C,
VCC = 2.7 V to 3.6V
–14
+14
Factory calibration accuracy
T = 25C, VCC = 3.0V
–2.0
–0.2
+2.0
+0.2
%
User calibration accuracy
DFLL calibration step size
0.19
30.1.13.4 32kHz Internal ULP Oscillator Characteristics
Table 30-24. 32kHz Internal ULP Oscillator Characteristics
Parameter
Condition
Symbol
Min.
Typ.
Max.
Unit
kHz
%
Factory calibrated frequency
Factory calibration accuracy
Accuracy
32
T = 25°C, VCC = 3.0V
–12
–30
+12
+30
%
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30.1.13.5 Internal Phase Locked Loop (PLL) Characteristics
Table 30-25. Internal PLL Characteristics
Parameter
Condition
Symbol
fIN
Min.
0.4
10
Typ.
Max.
Unit
Output frequency must be within
fOUT
Input frequency
32
MHz
Output frequency
Start-up time
VCC = 2.7 - 3.6V
fOUT
64
MHz
µs
25
25
160
100
Re-lock time
µs
Note:
Characterized not tested to start-up and re-lock time.
30.1.13.6 External Clock Characteristics
Figure 30-3. External Clock Drive Waveform
tCH
tCH
tCR
tCF
VIH1
VIL1
tCL
tCK
Table 30-26. External Clock used as System Clock without Prescaling
Parameter
Condition
Symbol
Min.
0
Typ.
Max.
Unit
MHz
ns
Clock Frequency
VCC = 2.7 - 3.6V
VCC = 2.7 - 3.6V
VCC = 2.7 - 3.6V
VCC = 2.7 - 3.6V
VCC = 2.7 - 3.6V
VCC = 2.7 - 3.6V
1/tCK
32
Clock Period
31.5
12.5
12.5
Clock High Time
tCH
tCL
tCR
tCF
ns
Clock Low Time
ns
Rise Time (for maximum frequency)
Fall Time (for maximum frequency)
3
3
ns
ns
Change in period from one clock cycle to the
next
tCK
10
%
Table 30-27. External Clock with Prescaler(1) for System Clock
Parameter
Condition
Symbol
1/tCK
tCK
Min.
0
Typ.
Max.
Unit
MHz
ns
Clock Frequency
VCC = 2.7 - 3.6V
VCC = 2.7 - 3.6V
VCC = 2.7 - 3.6V
VCC = 2.7 - 3.6V
VCC = 2.7 - 3.6V
VCC = 2.7 - 3.6V
142
Clock Period
7
Clock High Time
tCH
2.4
2.4
ns
Clock Low Time
tCL
ns
Rise Time (for maximum frequency)
Fall Time (for maximum frequency)
tCR
1.0
1.0
ns
tCF
ns
Change in period from one clock cycle to the
next
tCK
10
%
Notes: 1. System Clock Prescalers must be set so that maximum CPU clock frequency for device is not exceeded.
ATxmega64D3 [DATASHEET]
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30.1.13.7 External 32.768kHz Crystal Oscillator and TOSC Characteristics
Table 30-28. External Full-swing 32.768kHz Crystal Oscillator and TOSC Characteristics
Parameter
Condition
Symbol
Min.
Typ.
Max.
Unit
Recommended crystal
equivalent series resistance
(ESR)
Crystal load capacitance 12pF
ESR
50
k
Parasitic capacitance TOSC1 pin
Parasitic capacitance TOSC2 pin
CTOSC1
CTOSC2
3.3
3.3
pF
Capacitance load matched to crystal
specification
Safety factor
2
Notes: 1. See Figure 30-4 for definition.
2. 32.768kHz crystal oscillator start-up times can be of the order of 5 seconds component dependent.
Figure 30-4. TOSC Input Capacitance
CL1
CL2
Device internal
External
TOSC1
TOSC2
32.768kHz crystal
The parasitic capacitance between the TOSC pins is CL1 + CL2 in series as seen from the crystal when oscillating without
external capacitors.
30.1.13.8 External 0.4MHz to 16MHz Crystal Oscillator Characteristics
Table 30-29. External 0.4MHz to 16MHz Crystal Oscillator Characteristics
Parameter
Condition
Symbol
Min.
Typ.
Max.
0.052
0.138
1.200
Unit
Crystal load capacitance 20pF, 16MHz
Crystal load capacitance 20pF, 8MHz
Crystal load capacitance 20pF, 2MHz
ESR/R1
k
Recommended crystal
equivalent series resistance
(ESR)
Crystal load capacitance 100pF,
400kHz
11.500
Parasitic capacitance XTAL1
Parasitic capacitance XTAL2
4.6
6.5
pF
Capacitance load matched to crystal
specification
Recommended safety factor
3
66
ATxmega64D3 [DATASHEET]
9322A–AVR–03/14
30.1.14 SPI Characteristics
Figure 30-5. SPI Timing Requirements in Master Mode
SS
tMOS
tSCKR
tSCKF
SCK
(CPOL = 0)
tSCKW
SCK
(CPOL = 1)
tSCKW
tMIS tMIH
tSCK
LSB
MISO
(Data Input)
MSB
tMOH
tMOH
MOSI
(Data Output)
MSB
LSB
Figure 30-6. SPI Timing Requirements in Slave Mode
SS
tSCKR
tSCKF
tSSH
tSSS
SCK
(CPOL = 0)
tSSCKW
SCK
(CPOL = 1)
tSSCKW
tSIS
tSSCK
tSIH
MSB
MOSI
(Data Input)
...
...
LSB
tSOSSS
tSOSSH
tSOS
MISO
(Data Output)
MSB
LSB
ATxmega64D3 [DATASHEET]
67
9322A–AVR–03/14
Table 30-30. SPI Timing Characteristics and Requirements
Parameter
Condition
Symbol
Min.
Typ.
Max.
Unit
(See Table 20-3 in
XMEGA D manual)
SCK period
Master
tSCK
SCK high/low width
SCK rise time
Master
Master
Master
Master
Master
Master
Master
Slave
Slave
Slave
Slave
Slave
Slave
Slave
Slave
Slave
Slave
Slave
Slave
tSCKW
tSCKR
tSCKF
tMIS
0.5 SCK
2.7
SCK fall time
2.7
MISO setup to SCK
MISO hold after SCK
MOSI setup SCK
MOSI hold after SCK
Slave SCK Period
SCK high/low width
SCK rise time
10
tMIH
10
0.5 SCK
1
tMOS
tMOH
tSSCK
tSSCKW
tSSCKR
tSSCKF
tSIS
4 t ClkPER
2 t ClkPER
ns
1600
1600
SCK fall time
MOSI setup to SCK
MOSI hold after SCK
SS setup to SCK
SS hold after SCK
MISO setup SCK
MISO hold after SCK
MISO setup after SS low
MISO hold after SS high
3
t ClkPER
21
tSIH
tSSS
tSSH
20
tSOS
8
13
11
8
tSOH
tSOSS
tSOSH
30.1.15 Two-wire Interface Characteristics
Table 30-31 on page 69 describes the requirements for devices connected to the two-wire interface bus. The Atmel AVR
XMEGA two-wire interface meets or exceeds these requirements under the noted conditions. Timing symbols refer to Figure
30-7 on page 68.
Figure 30-7. Two-wire Interface Bus Timing
tof
tHIGH
tr
tLOW
SCL
SDA
tHD,STA
tHD,DAT
tSU,DAT
tSU,STA
tSU,STO
tBUF
68
ATxmega64D3 [DATASHEET]
9322A–AVR–03/14
Table 30-31. Two-wire Interface Characteristics
Parameter
Condition
Symbol
VIH
VIL
Vhys
VOL
tr
Min.
0.7VCC
–0.1
Typ.
Max.
VCC + 0.5
0.3VCC
Unit
Input high voltage
Input low voltage
V
(1)
Hysteresis of Schmitt trigger inputs
Output low voltage
0.05VCC
3mA, sink current
0
20 + 0.1Cb
20 + 0.1Cb
0
0.4
300
250
50
(1)(2)
(1)(2)
Rise time for both SDA and SCL
Output fall time from VIHmin to VILmax 10pF < Cb < 400pF(2)
tof
ns
Spikes suppressed by input filter
tSP
Input current for each I/O pin
Capacitance for each I/O pin
0.1VCC < VI < 0.9VCC
II
-10
10
µA
pF
CI
10
fPER(3) > max(10fSCL
250kHz)
,
SCL clock frequency
fSCL
0
400
kHz
100ns
Cb
--------------
fSCL ≤ 100kHz
VCC – 0,4V
---------------------------
3mA
Value of pull-up resistor
RP
fSCL > 100kHz
300ns
--------------
Cb
fSCL ≤ 100kHz
fSCL > 100kHz
fSCL ≤ 100kHz
fSCL > 100kHz
fSCL ≤ 100kHz
fSCL > 100kHz
fSCL ≤ 100kHz
fSCL > 100kHz
fSCL ≤ 100kHz
fSCL > 100kHz
fSCL ≤ 100kHz
fSCL > 100kHz
fSCL ≤ 100kHz
fSCL > 100kHz
fSCL ≤ 100kHz
fSCL > 100kHz
4.0
0.6
4.7
1.3
4.0
0.6
4.7
0.6
0
Hold time (repeated) START
condition
tHD;STA
Low period of SCL clock
High period of SCL clock
tLOW
µs
tHIGH
Set-up time for a repeated START
condition
tSU;STA
tHD;DAT
tSU;DAT
tSU;STO
tBUF
3.45
0.9
Data hold time
0
250
100
4.0
0.6
4.7
1.3
Data setup time
µs
Setup time for STOP condition
Bus free time between a STOP and
START condition
Notes: 1. Required only for fSCL > 100kHz.
2. Cb = Capacitance of one bus line in pF.
3.
fPER = Peripheral clock frequency.
ATxmega64D3 [DATASHEET]
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31. Typical Characteristics
31.1 Atmel ATxmega64D3
31.1.1 Active Supply Current
Figure 31-1. Active Supply Current versus Frequency
f
SYS = 0 - 1MHz External Clock, T = 25°C
660
590
520
450
380
310
240
3.6V
3.3V
3.0V
2.7V
170
100
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1
Frequency (MHz)
Figure 31-2. Active Supply Current versus Frequency
fSYS = 1 - 32MHz External Clock, T = 25°C
10000
9000
8000
7000
6000
5000
4000
3000
2000
1000
0
3.6V
3.3V
3.0V
2.7V
0
4
8
12
16
20
24
28
32
Frequency (MHz)
Figure 31-3. Active Supply Current versus VCC
f
SYS = 1MHz External Clock
880
830
780
730
680
630
580
530
480
-40°C
25°C
85°C
105°C
2.7
2.8
2.9
3
3.1
3.2
3.3
3.4
3.5
3.6
VCC (V)
70
ATxmega64D3 [DATASHEET]
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Figure 31-4. Active Supply Current versus VCC
f
SYS = 32.768kHz Internal Oscillator
270
250
230
210
190
170
150
130
110
-40°C
25°C
85°C
105°C
2.7
2.8
2.9
3
3.1
3.2
3.3
3.3
3.3
3.4
3.4
3.4
3.5
3.5
3.5
3.6
3.6
3.6
VCC (V)
Figure 31-5. Active Supply Current versus VCC
f
SYS = 2MHz Internal Oscillator
1310
1240
1170
1100
1030
960
-40°C
25°C
85°C
105°C
890
820
750
2.7
2.8
2.9
3
3.1
3.2
VCC (V)
Figure 31-6. Active Supply Current versus VCC
f
SYS = 32MHz Internal Oscillator Prescaled to 8MHz
4900
4600
4300
4000
3700
3400
3100
2800
2500
-40°C
25°C
85°C
105°C
2.7
2.8
2.9
3
3.1
3.2
VCC (V)
ATxmega64D3 [DATASHEET]
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9322A–AVR–03/14
Figure 31-7. Active Supply Current versus VCC
f
SYS = 32MHz Internal Oscillator
11000
10500
10000
9500
9000
8500
8000
7500
7000
6500
6000
-40°C
25°C
85°C
105°C
2.7
2.8
2.9
3
3.1
3.2
3.3
3.4
3.5
3.6
VCC (V)
31.1.2 Idle Supply Current
Figure 31-8. Idle Supply Current versus Frequency
f
SYS = 0 - 1MHz External Clock, T = 25°C
140
120
3.6V
3.3V
3.0V
100
80
60
40
20
0
2.7V
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1
Frequency (MHz)
Figure 31-9. Idle Supply Current versus Frequency
f
SYS = 1 - 32MHz External Clock, T = 25°C
4000
3500
3000
2500
2000
1500
1000
500
3.6V
3.3V
3.0V
2.7V
0
0
4
8
12
16
20
24
28
32
Frequency (MHz)
72
ATxmega64D3 [DATASHEET]
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Figure 31-10. Idle Supply Current versus VCC
f
SYS = 1MHz External Clock
131
105°C
85°C
123
115
107
99
25°C
-40°C
91
83
75
2.7
2.8
2.9
3
3.1
3.2
3.3
3.3
3.3
3.4
3.4
3.4
3.5
3.5
3.5
3.6
3.6
3.6
VCC (V)
Figure 31-11. Idle Supply Current versus VCC
f
SYS = 32.768kHz Internal Oscillator
34.0
33.5
33.0
32.5
32.0
31.5
31.0
30.5
30.0
29.5
29.0
105°C
85°C
25°C
2.7
2.8
2.9
3
3.1
3.2
VCC (V)
Figure 31-12. Idle Supply Current versus VCC
f
SYS = 2.0MHz Internal Oscillator
340
325
310
295
280
265
-40°C
25°C
85°C
105°C
250
235
220
2.7
2.8
2.9
3
3.1
3.2
VCC (V)
ATxmega64D3 [DATASHEET]
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9322A–AVR–03/14
Figure 31-13. Idle Supply Current versus VCC
SYS = 32MHz Internal Oscillator Prescaled to 8MHz
f
1590
1510
1430
1350
1270
1190
1110
1030
950
-40°C
25°C
85°C
105°C
2.7
2.8
2.9
3
3.1
3.2
3.3
3.4
3.5
3.6
VCC (V)
Figure 31-14. Idle Supply Current versus VCC
f
SYS = 32MHz Internal Oscillator
4300
-40°C
25°C
85°C
105°C
4100
3900
3700
3500
3300
3100
2900
2700
2500
2.7
2.8
2.9
3
3.1
3.2
3.3
3.4
3.5
3.6
VCC (V)
31.1.3 Power-down Supply Current
Figure 31-15. Power-down Supply Current versus Temperature
All Functions Disabled
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0
3.6V
3.4V
3.3V
3.2V
3.0V
2.8V
2.7V
-40
-25
-10
5
20
35
50
65
80
95
110
Temperature (°C)
74
ATxmega64D3 [DATASHEET]
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Figure 31-16. Power-down Supply Current versus Temperature
Watchdog and Sampled BOD Enabled and Running from Internal ULP Oscillator
6.0
3.6V
5.5
5.0
4.5
4.0
3.5
3.4V
3.3V
3.2V
3.0V
2.8V
2.7V
3.0
2.5
2.0
1.5
1.0
-40
-25
-10
5
20
35
50
65
80
95
110
Temperature (°C)
31.1.4 Power-save Supply Current
Figure 31-17. Power-save Supply Current versus Temperature with WDT, Sampled BOD, and RTC from ULP
Enabled
3.3V
3.0V
3.0
2.7V
1.8V
2.2V
2.5
2.0
1.5
1.0
0.5
0
-40 -30 -20 -10
0
10
20
30
40
50
60
70
80
90
Temperature (°C)
31.1.5 Pin Pull-up
Figure 31-18. Reset Pull-up Resistor Current versus Reset Pin Voltage, VCC = 3.0V
140
120
100
80
60
40
20
0
0
0.3
0.6
0.9
1.2
1.5
1.8
2.1
2.4
2.7
3
VRESET (V)
ATxmega64D3 [DATASHEET]
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9322A–AVR–03/14
Figure 31-19. Reset Pull-up Resistor Current versus Reset Pin Voltage
CC = 3.3V
V
140
120
100
80
60
40
20
0
0
0.3
0.6
0.9
1.2
1.5
1.8
2.1
2.4
2.7
3
3.3
VRESET (V)
31.1.6 Pin Output Voltage versus Sink/Source Current
Figure 31-20. I/O Pin Output Voltage versus Source Current
CC = 3.0V
V
3.2
2.8
2.4
2.0
1.6
1.2
0.8
0.4
0
-10
-16
-14
-12
-8
-6
-4
-2
0
IPIN (mA)
Figure 31-21. I/O Pin Output Voltage versus Source Current
VCC = 3.3V
3.6
3.2
2.8
2.4
2.0
1.6
1.2
0.8
0.4
-20
0
-18
-16
-14
-12
-10
-8
-6
-4
-2
0
IPIN (mA)
76
ATxmega64D3 [DATASHEET]
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Figure 31-22. I/O Pin Output Voltage versus Sink Current
VCC = 3.0V
1
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
105°C
85°C
25°C
-40°C
0
2
4
6
8
10
12
14
16
IPIN (mA)
Figure 31-23. I/O Pin Output Voltage versus Sink Current
VCC = 3.3V
1.4
105°C
85°C
1.2
1.0
0.8
0.6
25°C
-40°C
0.4
0.2
0
0
2
4
6
8
10
12
14
16
18
20
IPIN (mA)
31.1.7 Thresholds and Hysteresis
Figure 31-24. I/O Pin Input Threshold Voltage versus VCC
VIH - Pin Read as “1”
1.76
1.69
1.62
-40°C
25°C
85°C
105°C
1.55
1.48
1.41
1.34
1.27
1.20
2.6
2.7
2.8
2.9
3
3.1
3.2
3.3
3.4
3.5
3.6
VCC (V)
ATxmega64D3 [DATASHEET]
77
9322A–AVR–03/14
Figure 31-25. I/O Pin Input Threshold Voltage versus VCC
VIL - Pin Read as “0”
1.61
-40°C
25°C
1.53
1.45
1.37
1.29
1.21
1.13
1.05
85°C
105°C
2.6
2.7
2.8
2.9
3
3.1
3.2
3.3
3.4
3.5
3.6
VCC (V)
Figure 31-26. I/O Pin Input Hysteresis versus VCC
0.205
0.202
0.199
0.196
0.193
0.190
0.187
0.184
0.181
0.178
2.6
2.7
2.8
2.9
3
3.1
3.2
3.3
3.4
3.5
3.6
VCC (V)
Figure 31-27. Reset Input Threshold Voltage versus VCC
VIH - Pin Read as “1”
1.75
25°C
85°C
1.65
1.55
1.45
1.35
1.25
1.15
105°C
2.7
2.8
2.9
3
3.1
3.2
3.3
3.4
3.5
3.6
VCC (V)
78
ATxmega64D3 [DATASHEET]
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Figure 31-28. Reset Input Threshold Voltage versus VCC
VIL - Pin Read as “0”
1.75
25°C
85°C
1.65
1.55
1.45
1.35
1.25
1.15
105°C
2.7
2.8
2.9
3
3.1
3.2
3.3
3.4
3.5
3.6
VCC (V)
31.1.8 BOD Thresholds
Figure 31-29. BOD Thresholds versus Temperature
BOD Level = 2.6V
2.61
2.60
2.59
2.58
2.57
2.56
2.55
Rising VCC
Falling VCC
2.54
2.53
2.52
2.51
-40
-25
-10
5
20
35
50
65
80
95
110
Temperature (°C)
31.1.9 Oscillators and Wake-up Time
31.1.9.1 Internal 32.768kHz Oscillator
Figure 31-30. Internal 32.768kHz Oscillator Calibration Step Size
T = –40 to 105°C, VCC = 3V
1.0
0.5
0
-0.5
-1.0
-40°C
25°C
85°C
105°C
-1.5
-2.0
-2.5
-3.0
-3.5
-4.0
-4.5
0
32
64
96
128
160
192
224
256
RC32KCAL (7..0)
ATxmega64D3 [DATASHEET]
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9322A–AVR–03/14
31.1.9.2 Internal 2MHz Oscillator
Figure 31-31. Internal 2MHz Oscillator CALA Calibration Step Size
VCC = 3V
0.260
0.245
0.230
0.215
0.200
0.185
0.170
0.155
0.140
0
20
40
60
80
100
120
140
CALA
Figure 31-32. Internal 2MHz Oscillator CALB Calibration Step Size
VCC = 3V, CALA = Mid Value
2.95
2.70
2.45
2.20
1.95
1.70
1.45
1.20
0.95
0.70
-40°C
25°C
85°C
105°C
0
8
16
24
32
40
48
56
64
CALB
31.1.9.3 Internal 32MHz Oscillator
Figure 31-33. Internal 32MHz Oscillator CALA Calibration Step Size,
VCC = 3V
0.27
0.25
0.23
0.21
0.19
0.17
0.15
0.13
25°C
-40°C
85°C
105°C
0
16
32
48
64
80
96
112
128
CALA
80
ATxmega64D3 [DATASHEET]
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Figure 31-34. Internal 32MHz Oscillator CALB Calibration Step Size
VCC = 3V, CALA = Mid Value
2.80
2.55
2.30
2.05
1.80
1.55
1.30
1.05
0.80
-40°C
25°C
85°C
105°C
0
8
16
24
32
40
48
56
64
CALB
31.1.10 Module Current Consumption
Figure 31-35. Power-up Current Consumption versus VCC
700
-40°C
25°C
85°C
600
500
400
300
200
100
0
0.4
0.6
0.8
1.0
1.2
1.4
1.6
VCC (V)
ATxmega64D3 [DATASHEET]
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32. Errata
32.1 Atmel ATxmega64D3
32.1.1 Rev. I
●
AC system status flags are only valid if AC-system is enabled
1. AC System Status Flags are only Valid if AC-system is Enabled
The status flags for the ac-output are updated even though the AC is not enabled which is invalid. Also, it is not possi-
ble to clear the AC interrupt flags without enabling either of the Analog comparators.
Problem Fix/Workaround
Software should clear the AC system flags once, after enabling the AC system before using the AC system status
flags.
32.1.2 Rev. H - Rev. A
Not sampled.
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33. Ordering Information
Flash
[bytes]
EEPROM
[bytes]
SRAM
[bytes]
Power
supply
Package
(1)(2)
Ordering Code
Speed [MHz]
Temp.
–40°C to
+105°C
ATxMega64D3-15AT1(3)
65536
2048
2048
4096
4096
Up to 32MHz 2.7V to 3.6V
Up to 32MHz 2.7V to 3.6V
MD
MF
ATxMega64D3-
15A2T1(3)
–40°C to
+105°C
65536
Notes: 1. Pb-free packaging, complies to the European Directive for Restriction of Hazardous Substances (RoHS directive). Also
Halide free and fully Green.
2. For packaging information, see Section 34.1 “Packaging Information” on page 84.
3. Tape and Reel.
34. Package Information
Package Type
64-lead, 1414mm body size, 1.0mm body thickness, 0.8mm lead pitch, thin profile plastic quad flat package
(TQFP)
MD
64-lead, 1010mm body size, 1.0mm body thickness, 0.5mm lead pitch, thin profile plastic quad flat package
(TQFP)
MF
ATxmega64D3 [DATASHEET]
83
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34.1 Packaging Information
Figure 34-1. Package MD
Drawings not scaled
D1
A
A2
64
A1
E1
e
L
0°~7°
C
Top View
Side View
D
COMMON DIMENSIONS
(Unit of Measure = mm)
Symbol MIN
NOM
MAX NOTE
A
A1
A2
D/E
D1/E1
C
1.20
0.15
1.05
16.25
14.10
0.20
0.75
0.45
E
0.05
0.95
1.00
16.00
14.00
15.75
13.90
0.09
b
2
L
0.45
b
0.30
0.37
0.80 TYP.
44
Bottom View
e
n
Notes: 1. This drawing is for general information only. Refer to JEDEC Drawing MS-026, Variation AEB.
2. Dimensions D1 and E1 do not include mold protrusion. Allowable protrusion is 0.25mm per side.
Dimensions D1 and E1 are maximum plastic body size dimensions including mold mismatch.
3. Lead coplanarity is 0.10mm maximum.
03/30/12
REV.
TITLE
DRAWING NO.
MD
GPC
ADY
MD, 64 Lds - 0.80mm Pitch, 14x14x1.00mm Body size
Thin Profile Plastic Quad Flat Package (TQFP)
Package Drawing Contact:
packagedrawings@atmel.com
G
84
ATxmega64D3 [DATASHEET]
9322A–AVR–03/14
Figure 34-2. Package MF
Drawings not scaled
D
A
0
to 7
°
°
D1
64
e
E
E1
f
J
C
Side View
Top View
COMMON DIMENSIONS
(Unit of Measure = mm)
Symbol MIN
NOM
MAX NOTE
A
1.20
1.05
0.20
12
°
A1
C
0.95
0.09
A1
D/E
12.00
10.00
D1/E1
2
0.102 max.
Lead coplanarity
J
L
e
f
0.05
0.45
0.15
0.75
Detail View
0.50 BSC
64
0.17
0.27
n
Notes: 1. This drawing is for general information only. Refer to JEDEC Drawing MS-026, Variation ACD.
2. Dimensions D1 and E1 do not include mold protrusion. Allowable protrusion is 0.25mm per side.
Dimensions D1 and E1 are maximum plastic body size dimensions including mold mismatch.
3. Lead coplanarity is 0.10mm maximum.
05/03/13
REV.
TITLE
DRAWING NO.
MF
GPC
AIN
MF, 64 Lds - 0.50mm Pitch, 10x10x1.00mm Body size
Thin Profile Plastic Quad Flat Package (TQFP)
Package Drawing Contact:
packagedrawings@atmel.com
D
ATxmega64D3 [DATASHEET]
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X
X X X X
X
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