PMS150C_技术文档

PMS150C

8bit OTP Type IO Controller

Data Sheet

Version 0.04 – Jan. 24, 2018

6F-6, No.1, Sec. 3, Gongdao 5th Rd., Hsinchu City 30069, Taiwan, R.O.C.

TEL: 886-3-572-8688  www.padauk.com.tw

PMS150C

8 bit IO-Type Controller

IMPORTANT NOTICE

PADAUK Technology reserves the right to make changes to its products or to terminate

production of its products at any time without notice. Customers are strongly

recommended to contact PADAUK Technology for the latest information and verify

whether the information is correct and complete before placing orders.

PADAUK Technology products are not warranted to be suitable for use in life-support

applications or other critical applications. PADAUK Technology assumes no liability for

such applications. Critical applications include, but are not limited to, those that may

involve potential risks of death, personal injury, fire or severe property damage.

PADAUK Technology assumes no responsibility for any issue caused by a customer’s

product design. Customers should design and verify their products within the ranges

guaranteed by PADAUK Technology. In order to minimize the risks in customers’ products,

customers should design a product with adequate operating safeguards.

PMS150C is NOT designed for AC RC step-down powered, high power ripple or high EFT

requirement application, please do NOT apply PMS150C to those application products.

Page 2 of 67

PDK-DS-PMS150C-EN-V004 – Jan. 24, 2018

PMS150C

8 bit IO-Type Controller

Table of Contents

1. Features...............................................................................................................................8

1.1.

1.2.

1.3.

System Features...................................................................................................................8

CPU Features .......................................................................................................................8

Package Information .............................................................................................................8

2. General Description and Block Diagram ..........................................................................9

3. Pin Functional Description ..............................................................................................10

4. Device Characteristics .....................................................................................................12

4.1.

4.2.

4.3.

4.4.

4.5.

4.6.

4.7.

4.8.

4.9.

DC/AC Characteristics ........................................................................................................12

Absolute Maximum Ratings.................................................................................................13

Typical IHRC Frequency vs. VDD (calibrated to 16MHz).....................................................14

Typical ILRC Frequency vs. VDD........................................................................................14

Typical IHRC Frequency vs. Temperature (calibrated to 16MHz)........................................15

Typical ILRC Frequency vs. Temperature ...........................................................................15

Typical Operating Current vs. VDD and CLK=IHRC/n.........................................................16

Typical Operating Current vs. VDD and CLK=ILRC/n..........................................................16

Typical IO pull high resistance.............................................................................................17

4.10. Typical IO driving current (I_OH) and sink current (I_OL) ...........................................................17

4.11. Typical IO input high/low threshold voltage (V_IH/V_IL) ............................................................18

4.12. Typical power down current (I_PD) and power save current (I_PS)............................................19

5. Functional Description.....................................................................................................20

5.1.

5.2.

Program Memory – OTP .....................................................................................................20

Boot Procedure...................................................................................................................20

5.2.1. Timing charts for reset conditions ...........................................................................21

Data Memory – SRAM ........................................................................................................22

Oscillator and clock.............................................................................................................22

5.4.1. Internal High RC oscillator and Internal Low RC oscillator ......................................22

5.4.2. IHRC calibration .....................................................................................................22

5.4.3. IHRC Frequency Calibration and System Clock......................................................23

5.4.4. System Clock and LVR levels.................................................................................24

Comparator.........................................................................................................................25

5.3.

5.4.

5.5.

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PDK-DS-PMS150C-EN-V004 – Jan. 24, 2018

PMS150C

8 bit IO-Type Controller

5.5.1. Internal reference voltage (V_{internal R})........................................................................26

5.5.2. Using the comparator .............................................................................................28

5.5.3. Using the comparator and band-gap 1.20V ............................................................29

16-bit Timer (Timer16).........................................................................................................30

8-bit timer (Timer2) with PWM generation ...........................................................................31

5.7.1. Using the Timer2 to generate periodical waveform .................................................32

5.7.2. Using the Timer2 to generate 8-bit PWM waveform................................................33

5.7.3. Using the Timer2 to generate 6-bit PWM waveform................................................34

Watchdog Timer..................................................................................................................36

Interrupt...............................................................................................................................37

5.6.

5.7.

5.8.

5.9.

5.10. Power-Save and Power-Down ............................................................................................40

5.10.1. Power-Save mode (“stopexe”)................................................................................40

5.10.2. Power-Down mode (“stopsys”)................................................................................41

5.10.3. Wake-up.................................................................................................................42

5.11. IO Pins................................................................................................................................43

5.12. Reset ..................................................................................................................................44

6. IO Registers.......................................................................................................................44

6.1.

6.2.

6.3.

6.4.

6.5.

6.6.

6.7.

6.8.

6.9.

ACC Status Flag Register (flag), IO address = 0x00 ...........................................................44

Stack Pointer Register (sp), IO address = 0x02...................................................................44

Clock Mode Register (clkmd), IO address = 0x03................................................................44

Interrupt Enable Register (inten), IO address = 0x04...........................................................45

Interrupt Request Register (intrq), IO address = 0x05 .........................................................45

Timer 16 mode Register (t16m), IO address = 0x06............................................................45

External Oscillator setting Register (eoscr, write only), IO address = 0x0a..........................46

Interrupt Edge Select Register (integs), IO address = 0x0c.................................................46

Port A Digital Input Enable Register (padier), IO address = 0x0d ........................................46

6.10. Port A Data Registers (pa), IO address = 0x10 ...................................................................46

6.11. Port A Control Registers (pac), IO address = 0x11..............................................................46

6.12. Port A Pull-High Registers (paph), IO address = 0x12.........................................................46

6.13. MISC Register (misc), IO address = 0x1b ...........................................................................47

6.14. Comparator Control Register (gpcc), IO address = 0x1A.....................................................47

6.15. Comparator Selection Register (gpcs), IO address = 0x1E .................................................48

6.16. Timer2 Control Register (tm2c), IO address = 0x1C............................................................48

6.17. Timer2 Counter Register (tm2ct), IO address = 0x1D..........................................................48

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PMS150C

8 bit IO-Type Controller

6.18. Timer2 Bound Register (tm2b), IO address = 0x09 .............................................................49

6.19. Timer2 Scalar Register (tm2s), IO address = 0x17..............................................................49

7. Instructions .......................................................................................................................50

7.1.

7.2.

7.3.

7.4.

7.5.

7.6.

7.7.

7.8.

7.9.

Data Transfer Instructions...................................................................................................51

Arithmetic Operation Instructions ........................................................................................54

Shift Operation Instructions .................................................................................................55

Logic Operation Instructions................................................................................................56

Bit Operation Instructions....................................................................................................58

Conditional Operation Instructions.......................................................................................58

System control Instructions .................................................................................................59

Summary of Instructions Execution Cycle ...........................................................................61

Summary of affected flags by Instructions...........................................................................62

8. Code Options ....................................................................................................................63

9. Special Notes ....................................................................................................................64

9.1.

9.2.

Warning...............................................................................................................................64

Using IC..............................................................................................................................64

9.2.1. IO pin usage and setting.........................................................................................64

9.2.2. Interrupt..................................................................................................................64

9.2.3. System clock switching...........................................................................................65

9.2.4. Power down mode, wakeup and watchdog.............................................................65

9.2.5. TIMER time out.......................................................................................................65

9.2.6. IHRC.......................................................................................................................65

9.2.7. LVR ........................................................................................................................66

9.2.8. Instructions.............................................................................................................66

9.2.9. RAM definition ........................................................................................................66

9.2.10. Program writing ......................................................................................................66

Using ICE............................................................................................................................67

9.3.

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PMS150C

8 bit IO-Type Controller

Revision History:

Revision

Date

Description

0.01

2016/03/09 1^stversion

1. Amend Chapter 2 Block Diagram

2. Amend Chapter 4.1 Pull-high Resistance typical value

3. Add Chapter 5.5 and all descriptions about the Comparator

4. Add Chapter 5.7 and all descriptions about Timer2 with PWM generation

1. Amend Section 1.1 System Features

0.02

2016/11/03

2. Add Section 1.3 Package Information

3. Amend Chapter 3 Pin Functional Description: PMS150C-U06, PMS150C-S08,

PMS150C-D08

4. Amend Section 4.1 DC/AC Characteristics: “V_IL” and “V_IH”

5. Amend Section 4.11 Typical IO input high/low threshold voltage

6. Add Section 4.12. Typical power down current (I_PD) and power save current (I_PS)

7. Add Section 5.2.1 Timing charts for reset conditions

8. Amend Section 5.4 Oscillator and clock

9. Amend Section 5.4.3 IHRC Frequency Calibration and System Clock

10. Amend Section 5.4.4 System Clock and LVR levels

11. Amend Fig.2 Options of System Clock

12. Amend Section 5.5.2 description about the comparator Case A and Case B

13. Amend Section 5.6 16-bit Timer

14. Amend Section 5.8 Watchdog Timer

0.03

2017/12/04 15. Amend Section 5.9 Interrupt

16. Amend Fig.12 Hardware diagram of Interrupt controller

17. Amend Section 5.10.1 Power-Save mode

18. Amend Section 5.10.3 Wake-up

19. Amend Section 6.3 Clock Mode Register

20. Amend Section 6.13 MISC Register

21. Amend Section 6.14. Comparator Control Register

22. Amend Section 6.16. Timer2 Control Register

23. Delete the Symbol “pc0” in Chapter 7

24. Add Chapter 8 Code Options

25. Amend Section 9.2.1 IO pin usage and setting

26. Amend Section 9.2.4 Power down mode, wakeup and watchdog

27. Add Section 9.2.6 IHRC

28. Amend Section 9.2.7 LVR

29. Amend Section 9.2.10 Program writing

30. Amend Section 9.3 Using ICE

1. Amend the address and phone number of PADAUK Technology Co.,Ltd.

2. Amend Section 1.2 CPU Features

3. Amend Section 5.4.4 System Clock and LVR levels

4. Amend Section 5.5.2 Using the comparator

5. Amend Section 5.5.3 Using the comparator and band-gap 1.20V

6. Amend Section 5.9 Interrupt

0.04

2018/01/24

7. Amend Section 5.10.1 Power-Save mode

8. Amend Section 5.10.2 Power-Down mode

9. Amend Section 5.10.3 Wake-up

10. Amend Section 6.15 Comparator Selection Register (gpcs)

Page 6 of 67

PDK-DS-PMS150C-EN-V004 – Jan. 24, 2018

PMS150C

8 bit IO-Type Controller

Major Differences between PMS150B and PMS150C

Item

Function

PMS150B

110KHz@5V, 25 ^oC

PMS150C

62KHz@5V, 25 ^oC

1

Frequency of ILRC

(much smaller variant with V_DD(much smaller variant with V_DD

changes)

4.0V, 3.5V, 3.0V, 2.75V,

2.5V, 2.2V, 2.0V, 1.8V

64 bytes

2

LVR levels

2.8V, 2.2V, 2.0V

3

4

5

6

Data RAM

60 bytes

No

0 ^oC ~70 ^oC

Input pull-up resistor of PA5

Operation temperature

Yes

-20 ^oC ~70 ^oC

Power save current (stopexe) 40uA@3.3V

3uA @3.3V

Normal: 14.5mA / -10.5mA@5V

Low: 5mA / -3.5mA@5V

8k, 16k, 64k, 256k T_ILRC

Fast: 32 T_ILRC

7

8

9

IO Sink / Drive current

17mA / -7mA@5V

Watchdog timeout period

4096, 16384, 65536 T_ILRC

Fast: 1024 T_IHRC

Slow: 1024 T_ILRC

Fast: 2048 T_IHRC

Slow: 1024 T_ILRC

0x3F8 ~ 0x3FF (8 words)

ILRC, ILRC/4

Wake-up time (t_WUP

Boot-up time

)

Slow: 2048 T_ILRC

Fast: 32 T_ILRC

10

Slow: 2048 T_ILRC

0x3F0 ~ 0x3FF (16 words)

ILRC, ILRC/4, ILRC/16

11

12

System reserved OTP area

ILRC modes for system CLK

PDK3S-I-00x

13

Supporting ICE

(recommended not to use)

5S-I-S0xx

14

15

8-bit Timer2 with PWM

Comparator

No

Yes

No

Page 7 of 67

PDK-DS-PMS150C-EN-V004 – Jan. 24, 2018

PMS150C

8 bit IO-Type Controller

1. Features

1.1. System Features

 1KW OTP program memory

 64 Bytes data RAM

 One hardware 16-bit timer

 One hardware 8-bit timer with PWM generation

 One general purpose comparator

 Support fast wake-up

 Every IO pin can be configured to enable wake-up function

 6 IO pins with optional drive/sink current and pull-high resistor

 Clock sources: internal high RC oscillator and internal low RC oscillator

 Eight levels of LVR ~ 4.0V, 3.5V, 3.0V, 2.75V, 2.5V, 2.2V, 2.0V, 1.8V

 One external interrupt pin

1.2. CPU Features

 One processing unit operating mode

 79 Powerful instructions

 Most instructions are 1T execution cycle

 Programmable stack pointer and adjustable stack level

 All data memories are available for use as an index pointer

 IO space and memory space are independent

1.3. Package Information

 PMS150C Series



PMS150C - U06: SOT23-6 (60mil);

PMS150C - S08: SOP8 (150mil);

PMS150C - D08: DIP8 (300mil)

Page 8 of 67

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PMS150C

8 bit IO-Type Controller

2. General Description and Block Diagram

The PMS150C is an IO-Type, fully static, OTP-based controller; it employs RISC architecture and most the

instructions are executed in one cycle except that few instructions are two cycles that handle indirect memory

access. 1KW bits OTP program memory and 64 bytes data SRAM are inside. Besides, one hardware 16-bit

timer, one hardware 8-bit timer with PWM generation and one general purpose comparator are also provided

in the PMS150C.

Page 9 of 67

PDK-DS-PMS150C-EN-V004 – Jan. 24, 2018

PMS150C

8 bit IO-Type Controller

3. Pin Functional Description

Pin & Buffer

Pin Name

Type

Description

This pin can be used as:

(1) Bit 7 of port A. It can be configured as digital input, two-state output with pull-up

resistor by software independently.

IO

ST /

PA7 /

(2) Minus input source 3 of comparator.

CIN3-

CMOS /

Analog

When this pin is configured as analog input, please use bit 7 of register padier to

disable the digital input to prevent current leakage. This pin can be used to

wake-up system during sleep mode; however, wake-up function is also disabled if

bit 7 of padier register is “0”.

This pin can be used as:

(1) Bit 6 of port A. It can be configured as digital input, two-state output with pull-up

resistor by software independently.

IO

ST /

PA6 /

(2) Minus input source 2 of comparator.

CIN2-

CMOS /

Analog

When this pin is configured as analog input, please use bit 6 of register padier to

disable the digital input to prevent current leakage. This pin can be used to

wake-up system during sleep mode; however, wake-up function is also disabled if

bit 6 of padier register is “0”.

Page 10 of 67

PDK-DS-PMS150C-EN-V004 – Jan. 24, 2018

PMS150C

8 bit IO-Type Controller

Pin & Buffer

Type

Pin Name

Description

The functions of this pin can be:

(1) Bit 5 of port A. It can be configured as input or open-drain output pin with

pull-up resistor.

IO

(2) Hardware reset.

PA5 /

ST /

This pin can be used to wake-up system during sleep mode; however, wake-up

function is also disabled if bit 5 of padier register is “0”.

Please put 33Ω resistor in series to have high noise immunity when this pin is in

input mode.

PRST#

CMOS

This pin can be used as:

(1) Bit 4 of port A. It can be configured as digital input, two-state output with pull-up

resistor by software independently.

IO

PA4 /

CIN+ /

(2) Plus input source of comparator.

ST /

(3) Minus input source 4 of comparator.

CIN4- /

TM2PWM

CMOS /

Analog

(4) Output of 8-bit Timer2 (TM2)

When this pin is configured as analog input, please use bit 4 of register padier to

disable the digital input to prevent current leakage. This pin can be used to

wake-up system during sleep mode; however, wake-up function is also disabled if

bit 4 of padier register is “0”.

This pin can be used as:

(1) Bit 3 of port A. It can be configured as digital input, two-state output with pull-up

resistor by software independently.

IO

PA3 /

CIN1- /

(2) Minus input source 1 of comparator.

ST /

(3) Output of 8-bit Timer2 (TM2)

CMOS /

Analog

TM2PWM

When this pin is configured as analog input, please use bit 3 of register padier to

disable the digital input to prevent current leakage. This pin can be used to

wake-up system during sleep mode; however, wake-up function is also disabled if

bit 3 of padier register is “0”.

The functions of this pin can be:

(1) Bit 0 of port A. It can be configured as input or output with pull-up resistor.

(2) External interrupt line 0. Both rising edge and falling edge are accepted to

request interrupt service.

PA0 /

INT0 /

CO

IO

ST /

CMOS

(3) Output of comparator

This pin can be used to wake up system during sleep mode; however, wake-up

function from this pin is also disabled when bit 0 of padier register is “0”.

VDD

GND

Positive power

Ground

Notes: IO: Input/Output; ST: Schmitt Trigger input; Analog: Analog input pin; CMOS: CMOS voltage level

Page 11 of 67

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PMS150C

8 bit IO-Type Controller

4. Device Characteristics

4.1. DC/AC Characteristics

All data are acquired under the conditions of V_DD=5.0V, f_SYS=2MHz unless noted.

Symbol

V_DD

Description

Operating Voltage

Min

2.0*

-5

Typ

Max

5.5

5

Unit

V

Conditions

* Subject to LVR tolerance

Low Voltage Reset tolerance

%

LVR%

System clock (CLK)* =

IHRC/2

0

8M

4M

2M

V_DD≧ 3.0V

V_DD≧ 2.2V

V_DD≧ 2.0V

V_DD=5.0V

IHRC/4

f_SYS

Hz

IHRC/8

ILRC

62K

2.0

0.3

13

V_PORPower On Reset Voltage

1.9

2.1

V

f_SYS=IHRC/16=1MIPS@3.3V

f_SYS=ILRC=62kHz@3.3V

mA

uA

I_OP

I_PD

Operating Current

Power Down Current

0.5

uA

f_SYS= 0Hz, V_DD=3.3V

(by stopsys command)

V_DD=3.3V;

Power Save Current

I_PS

3

uA

Band-gap, LVR, IHRC are

OFF, ILRC module is ON.

(by stopexe command)

V_IL

V_IH

Input low voltage for IO lines

Input high voltage for IO lines

0

0.1 V_DD

V_DD

V

0.8 V_DD

0.6 V_DD

PA5

V_DD

Others IO

IO lines sink current

Normal

I_OL

10

14.5

5.0

19

mA

V_DD=5.0V, V_OL=0.5V

V_DD=5.0V, V_OH=4.5V

Low

3.5

6.5

IO lines drive current

Normal

I_OH

-7.5

-2.6

-0.3

-10.5

-3.5

-13.5

-4.4

Low

Input voltage

V_DD+0.3

1

V

V_IN

V_DD+0.3≧V_IN≧ -0.3

V_DD=5.0V

I_{INJ (PIN)}Injected current on pin

mA

100

220

16*

R_PH

Pull-high Resistance

KΩ

V_DD=3.3V

@25^oC

15.76*

15.20*

16.24*

16.80*

Frequency of IHRC after

f_IHRC

MHz

V_DD=2.0V~5.5V,

calibration*

16*

62*

-20^oC<Ta<70^oC*

V_DD=5.0V, -20^oC <Ta<70^oC*

V_DD=5.0V

f_ILRC

t_INT

Frequency of ILRC*

KHz

ns

Interrupt pulse width

30

In power-down mode.

misc[1:0]=00 (default)

misc[1:0]=01

V_DR

RAM data retention voltage*

1.5

V

8k

16k

64k

256k

ILRC

clock

t_WDT

Watchdog timeout period

misc[1:0]=10

period

misc[1:0]=11

Page 12 of 67

PDK-DS-PMS150C-EN-V004 – Jan. 24, 2018

PMS150C

8 bit IO-Type Controller

Symbol

Description

System boot-up period from

power-on (Fast boot up)

System boot-up period from

power-on (Slow boot up)

Wake-up time for fast wake-up

(misc.5=1)

Min

Typ

780

47

Max

Unit

Conditions

@ V_DD=5V

us

@ V_DD=2.5V

t_SBP

@ V_DD=5V

ms

47

@ V_DD=2.5V

Where T_ILRCis the clock

period of ILRC

Where T_ILRCis the clock

period of ILRC

@ V_DD=5V

32

T_ILRC

t_WUP

Wake-up time for normal wake-up

(misc.5=0)

2048

t_RST

External reset pulse width

120

0

us

mV

V

CPos Comparator offset*

±10

±20

V_DD+1.5

500

CPcm Comparator input common mode*

CPspt Comparator response time*

100

2.5

20

ns

Both Rising and Falling

V_DD= 3.3V

Stable time to change comparator

CPmc

mode

7.5

us

CPcs Comparator current consumption

uA

*These parameters are for design reference, not tested for every chip.

4.2. Absolute Maximum Ratings



Supply Voltage ……………………………......

2.0V ~ 5.5V (Maximum Rating: 5.5V)

*If V_DDover maximum rating, it may lead to a permanent damage of IC.



Input Voltage …………………………………..

Operating Temperature ………………………

Storage Temperature …………………………

Junction Temperature ………………………..

-0.3V ~ V_DD+ 0.3V

-20°C ~ 70°C

-50°C ~ 125°C

150°C

Page 13 of 67

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PMS150C

8 bit IO-Type Controller

4.3. Typical IHRC Frequency vs. VDD (calibrated to 16MHz)

IHRC Frequency vs. VDD

16.05

16.00

15.95

15.90

15.85

2

2.5

3

3.5

4

4.5

5

5.5

VDD (Volt)

4.4. Typical ILRC Frequency vs. VDD

ILRC Frequency Deviation vs. VDD

66

65

64

63

62

61

60

59

2

2.5

3

3.5

4

4.5

5

5.5

VDD (Volt)

Page 14 of 67

PDK-DS-PMS150C-EN-V004 – Jan. 24, 2018

PMS150C

8 bit IO-Type Controller

4.5. Typical IHRC Frequency vs. Temperature (calibrated to 16MHz)

IHRC Drift

2.5

2

1.5

1

0.5

VDD=5.0V

0

-0.5

-1

VDD=4.0V

VDD=3.3V

VDD=2.5V

-1.5

-2

-2.5

-3

-40 -30 -20 -10

0

10

25

35

45

55

65

75

85

Temperature (degree C)

4.6. Typical ILRC Frequency vs. Temperature

ILRC Drift

VDD=5.0V

VDD=4.0V

VDD=3.3V

VDD=2.5V

VDD=2.0V

75

70

65

60

55

50

-40 -30 -20 -10 0 10 25 35 45 55 65 75 85

Temperature (degree C)

Page 15 of 67

PDK-DS-PMS150C-EN-V004 – Jan. 24, 2018

PMS150C

8 bit IO-Type Controller

4.7. Typical Operating Current vs. VDD and CLK=IHRC/n

Conditions: ON: Band-gap, LVR, IHRC, T16 modules; OFF: ILRC modules;

IO: PA0:0.5Hz output toggle and no loading, others: input and no floating

IHRC/n vs. VDD

1.4

1.2

1

IHRC/2

IHRC/4

IHRC/8

IHRC/16

IHRC/32

IHRC/64

0.8

0.6

0.4

0.2

0

2

2.5

3

3.5

4

4.5

5

5.5

VDD (V)

4.8. Typical Operating Current vs. VDD and CLK=ILRC/n

Conditions: ON: T16 modules; OFF: Band-gap, LVR, ILRC, IHRC modules;

IO: PA0:0.5Hz output toggle and no loading, others: input and no floating

ILRC/n vs. VDD

20

18

16

14

12

10

8

ILRC/1

ILRC/4

ILRC/16

6

4

2

0

2

2.5

3

3.5

VDD (V)

4

4.5

5

5.5

Page 16 of 67

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PMS150C

8 bit IO-Type Controller

4.9. Typical IO pull high resistance

Pull High Resistor

600.0

500.0

400.0

300.0

200.0

100.0

0.0

Avg.

PA5

2.0

3.0

4.0

5.0

VDD (V)

4.10.Typical IO driving current (I_OH) and sink current (I_OL)

Avg. IoH, IoL vs. VDD (Drive = Normal)

18

16

14

12

10

8

IoH

IoL

6

4

2

0

2.0

3.0

4.0

VDD (V)

5.0

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PMS150C

8 bit IO-Type Controller

Avg. IoH, IoL vs. VDD (Drive = Low)

7

6

5

4

3

2

1

0

IoH

IoL

2.0

3.0

4.0

VDD (V)

5.0

4.11.Typical IO input high/low threshold voltage (V_IH/V_IL)

Vih, Vil vs. VDD

4.0

Vih other IO

Vih PA5

3.5

3.0

2.5

2.0

1.5

1.0

0.5

0.0

Vil PA5

Vil other IO

2.0

2.5

3.0

3.5

4.0

4.5

5.0

5.5

VDD (V)

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PMS150C

8 bit IO-Type Controller

4.12.Typical power down current (I_PD) and power save current (I_PS)

stopsys power down current vs. VDD

0.8

0.7

0.6

0.5

0.4

0.3

0.2

0.1

0

stopsts

2.0

2.5

3.0

3.5

4.0

4.5

5.0

5.5

VDD (V)

stopexe power save current vs. VDD

3.0

2.5

2.0

1.5

1.0

0.5

0.0

stopexe

2.0

2.5

3.0

3.5

4.0

4.5

5.0

5.5

VDD (V)

Page 19 of 67

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PMS150C

8 bit IO-Type Controller

5. Functional Description

5.1. Program Memory – OTP

The OTP (One Time Programmable) program memory is used to store the program instructions to be

executed. The OTP program memory may contains the data, tables and interrupt entry. After reset, the initial

address for FPP0 is 0x000. The interrupt entry is 0x010 if used, the last 16 addresses are reserved for system

using, like checksum, serial number, etc. The OTP program memory for PMS150C is 1KW that is partitioned

as Table 1. The OTP memory from address 0x3F0 to 0x3FF is for system using, address space from 0x001 to

0x00F and from 0x011 to 0x3EF is user program space.

Address

0x000

0x001

•

Function

FPP0 reset – goto instruction

User program

•

0x00F

0x010

0x011

•

User program

Interrupt entry address

User program

•

0x3EF

0x3F0

•

User program

System Using

•

0x3FF

System Using

Table 1: Program Memory Organization

5.2. Boot Procedure

POR (Power-On-Reset) is used to reset PMS150C when power up, the boot up time can be optional fast or

slow, time for fast boot-up is about 32 ILRC clock cycles and 2048 ILRC clock cycles for slow boot-up.

Customer must ensure the stability of supply voltage after power up no matter which option is chosen, the

power up sequence is shown in the Fig. 1 and t_SBPis the boot-up time.

Please noted, during Power-On-Reset, the V_DDmust go higher than V_PORto boot-up the MCU.

Fig. 1: Power Up Sequence

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PMS150C

8 bit IO-Type Controller

5.2.1. Timing charts for reset conditions

LVR level

VDD

LVR

SBP

t

Program

Execution

Boot up from LVR detection

VDD

t

SBP

WD

Time Out

Program

Execution

Boot up from Watch Dog Time Out

VDD

Reset#

t

SBP

Program

Execution

Boot up from Reset Pad reset

Page 21 of 67

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PMS150C

8 bit IO-Type Controller

5.3. Data Memory – SRAM

The access of data memory can be byte or bit operation. Besides data storage, the SRAM data memory is

also served as data pointer of indirect access method and the stack memory.

The stack memory is defined in the data memory. The stack pointer is defined in the stack pointer register; the

depth of stack memory of each processing unit is defined by the user. The arrangement of stack memory fully

flexible and can be dynamically adjusted by the user.

For indirect memory access mechanism, the data memory is used as the data pointer to address the data

byte. All the data memory could be the data pointer; it’s quite flexible and useful to do the indirect memory

access. All the 64 bytes data memory of PMS150C can be accessed by indirect access mechanism.

5.4. Oscillator and clock

There are two oscillator circuits provided by PMS150C: internal high RC oscillator (IHRC) and internal low RC

oscillator (ILRC), and these two oscillators are enabled or disabled by registers clkmd.4 and clkmd.2

independently. User can choose one of these two oscillators as system clock source and use clkmd register

to target the desired frequency as system clock to meet different application.

Oscillator Module

Enable/Disable

clkmd.4

IHRC

ILRC

clkmd.2

5.4.1. Internal High RC oscillator and Internal Low RC oscillator

After boot-up, the IHRC and ILRC oscillators are enabled. The frequency of IHRC can be calibrated to

eliminate process variation by ihrcr register; normally it is calibrated to 16MHz. The frequency deviation can

be within 2% normally after calibration and it still drifts slightly with supply voltage and operating temperature,

the total drift rate is about ±5% for V_DD=2.0V~5.5V and -20^oC~70^oC operating conditions. Please refer to the

measurement chart for IHRC frequency verse V_DDand IHRC frequency verse temperature.

The frequency of ILRC will vary by process, supply voltage and temperature, please refer to DC

specification and do not use for accurate timing application.

5.4.2. IHRC calibration

The IHRC frequency may be different chip by chip due to manufacturing variation, PMS150C provide the

IHRC frequency calibration to eliminate this variation, and this function can be selected when compiling

user’s program and the command will be inserted into user’s program automatically. The calibration

command is shown as below:

.ADJUST_IC

SYSCLK=IHRC/(p1), IHRC=(p2)MHz, V_DD=(p3)V

Where,

p1=2, 4, 8, 16, 32; In order to provide different system clock.

p2=14 ~ 18; In order to calibrate the chip to different frequency, 16MHz is the usually one.

p3=2.2 ~ 5.5; In order to calibrate the chip under different supply voltage.

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PMS150C

8 bit IO-Type Controller

5.4.3. IHRC Frequency Calibration and System Clock

During compiling the user program, the options for IHRC calibration and system clock are shown as Table 2:

SYSCLK

○ Set IHRC / 2

○ Set IHRC / 4

○ Set IHRC / 8

○ Set IHRC / 16

○ Set IHRC / 32

○ Set ILRC

CLKMD

IHRCR

Description

= 34h (IHRC / 2)

= 14h (IHRC / 4)

= 3Ch (IHRC / 8)

= 1Ch (IHRC / 16)

= 7Ch (IHRC / 32)

= E4h (ILRC / 1)

No change

Calibrated

No Change

IHRC calibrated to 16MHz, CLK=8MHz (IHRC/2)

IHRC calibrated to 16MHz, CLK=4MHz (IHRC/4)

IHRC calibrated to 16MHz, CLK=2MHz (IHRC/8)

IHRC calibrated to 16MHz, CLK=1MHz (IHRC/16)

IHRC calibrated to 16MHz, CLK=0.5MHz (IHRC/32)

IHRC calibrated to 16MHz, CLK=ILRC

○ Disable

IHRC not calibrated, CLK not changed

Table 2: Options for IHRC Frequency Calibration

Usually, .ADJUST_IC will be the first command after boot up, in order to set the target operating frequency

whenever stating the system. The program code for IHRC frequency calibration is executed only one time

that occurs in writing the codes into OTP memory; after then, it will not be executed again. If the different

option for IHRC calibration is chosen, the system status is also different after boot. The following shows the

status of PMS150C for different option:

(1) .ADJUST_IC

SYSCLK=IHRC/2, IHRC=16MHz, V_DD=5V

After boot up, CLKMD = 0x34：

 IHRC frequency is calibrated to 16MHz@V_DD=5V and IHRC module is enabled

 System CLK = IHRC/2 = 8MHz

 Watchdog timer is disabled, ILRC is enabled, PA5 is in input mode

(2) .ADJUST_IC

SYSCLK=IHRC/4, IHRC=16MHz, V_DD=3.3V

After boot, CLKMD = 0x14：

 IHRC frequency is calibrated to 16MHz@V_DD=3.3V and IHRC module is enabled

 System CLK = IHRC/4 = 4MHz

 Watchdog timer is disabled, ILRC is enabled, PA5 is in input mode

(3) .ADJUST_IC

SYSCLK=IHRC/8, IHRC=16MHz, V_DD=2.5V

After boot, CLKMD = 0x3C：

 IHRC frequency is calibrated to 16MHz@V_DD=2.5V and IHRC module is enabled

 System CLK = IHRC/8 = 2MHz

 Watchdog timer is disabled, ILRC is enabled, PA5 is in input mode

(4) .ADJUST_IC

SYSCLK=IHRC/16, IHRC=16MHz, V_DD=2.2V

After boot, CLKMD = 0x1C：

 IHRC frequency is calibrated to 16MHz@V_DD=2.2V and IHRC module is enabled

 System CLK = IHRC/16 = 1MHz

 Watchdog timer is disabled, ILRC is enabled, PA5 is in input mode

Page 23 of 67

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PMS150C

8 bit IO-Type Controller

(5) .ADJUST_IC

SYSCLK=IHRC/32, IHRC=16MHz, V_DD=5V

After boot, CLKMD = 0x7C：

 IHRC frequency is calibrated to 16MHz@V_DD=5V and IHRC module is enabled

 System CLK = IHRC/32 = 500KHz

 Watchdog timer is disabled, ILRC is enabled, PA5 is in input mode

(6) .ADJUST_IC

SYSCLK=ILRC, IHRC=16MHz, V_DD=5V

After boot, CLKMD = 0XE4：

 IHRC frequency is calibrated to 16MHz@V_DD=5V and IHRC module is disabled

 System CLK = ILRC

 Watchdog timer is disabled, ILRC is enabled, PA5 is input mode

(7) .ADJUST_IC DISABLE

After boot, CLKMD is not changed (Do nothing)：

 IHRC is not calibrated.

 System CLK = ILRC or IHRC/64 (by Boot-up_Time)

 Watchdog timer is enabled, ILRC is enabled, PA5 is in input mode

5.4.4. System Clock and LVR levels

The clock source of system clock comes from IHRC or ILRC, the hardware diagram of system clock in the

PMS150C is shown as Fig. 2.

Fig. 2: Options of System Clock

User can choose different operating system clock depends on its requirement; the selected operating

system clock should be combined with supply voltage and LVR level to make system stable. The LVR level

will be selected during compilation, and the lowest LVR levels can be chosen for different operating

frequencies. Please refer to Section 4.1.

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PMS150C

8 bit IO-Type Controller

5.5. Comparator

One hardware comparator is built inside the PMS150C; Fig. 3 shows its hardware diagram. It can compare

signals between two pins or with either internal reference voltage V_{internal R}or internal band-gap reference

voltage. The two signals to be compared, one is the plus input and the other one is the minus input. For the

minus input of comparator can be PA3, PA4, Internal band-gap 1.20V, PA6, PA7 or V_{internal R}selected by bit

[3:1] of gpcc register, and the plus input of comparator can be PA4 or V_{internal R}selected by bit 0 of gpcc

register. The output result can be enabled to output to PA0 directly, or sampled by Timer2 clock (TM2_CLK)

which comes from Timer2 module. The output can be also inversed the polarity by bit 4 of gpcc register, the

comparator output can be used to request interrupt service.

Fig. 3: Hardware diagram of comparator

Page 25 of 67

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PMS150C

8 bit IO-Type Controller

5.5.1. Internal reference voltage (V_{internal R}

)

The internal reference voltage V_{internal R}is built by series resistance to provide different level of reference

voltage, bit 4 and bit 5 of gpcs register are used to select the maximum and minimum values of V_{internal R}and

bit [3:0] of gpcs register are used to select one of the voltage level which is deivided-by-16 from the defined

maximum level to minimum level. Fig. 4 to Fig. 7 shows four conditions to have different reference voltage

V_{internal R}. By setting the gpcs register, the internal reference voltage V_{internal R}can be ranged from (1/32)*V_DD

to (3/4)*V_DD.

Case 1 : gpcs.5=0 & gpcs.4=0

16 stages

VDD

8R

gpcs.4=0

gpcs.4=1

gpcs.5=1

R

gpcs.5=0

MUX

gpcs[3:0]

V

_{internal R}= (3/4) VDD ~ (1/4) VDD + (1/32) VDD

@ gpcs[3:0] = 1111 ~ gpcs[3:0] = 0000

1

4

(n+1)

32

V _{internal R}

=

*

VDD +

*

VDD, n = gpcs[3:0] in decimal

Fig. 4: V_{internal R}hardware connection if gpcs.5=0 and gpcs.4=0

Case 2 : gpcs.5=0 & gpcs.4= 1

16 stages

VDD

8R

gpcs.4=0

gpcs.4=1

gpcs.5=1

R

gpcs.5=0

MUX

gpcs[3:0]

V _{internal R}= (2/3) VDD ~ (1/24) VDD

@ gpcs[3:0] = 1111 ~ gpcs[3:0] = 0000

(n+1)

V _{internal R}

=

*

VDD, n = gpcs[3:0] in decimal

24

Fig. 5: V_{internal R}hardware connection if gpcs.5=0 and gpcs.4=1

Page 26 of 67

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PMS150C

8 bit IO-Type Controller

Case 3 : gpcs.5=1 & gpcs.4= 0

16 stages

VDD

8R

gpcs.5=1

gpcs.4=0

gpcs.4=1

R

gpcs.5=0

MUX

gpcs[3:0]

V _{internal R}= (3/5) VDD ~ (1/5) VDD + (1/40) VDD

@ gpcs[3:0] = 1111 ~ gpcs[3:0] = 0000

1

5

(n+1)

40

V _{internal R}

=

*

VDD +

*

VDD, n = gpcs[3:0] in decimal

Fig.6: V_{internal R}hardware connection if gpcs.5=1 and gpcs.4=0

Case 4 : gpcs.5=1 & gpcs.4=1

16 stages

VDD

8R

gpcs.4=0

gpcs.4=1

gpcs.5=1

R

gpcs.5=0

MUX

gpcs[3:0]

V _{internal R}= (1/2) VDD ~ (1/32) VDD

@ gpcs[3:0] = 1111 ~ gpcs[3:0] = 0000

(n+1)

V _{internal R}

=

*

VDD, n = gpcs[3:0] in decimal

32

Fig.7: V_{internal R}hardware connection if gpcs.5=1 and gpcs.4=1

Page 27 of 67

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PMS150C

8 bit IO-Type Controller

5.5.2. Using the comparator

Case A:

Choosing PA3 as minus input and V_{internal R}with (18/32)*V_DDvoltage level as plus input. V_{internal R}is

configured as the above Figure “gpcs[5:4] = 2b’00” and gpcs [3:0] = 4b’1001 (n=9) to have V_{internal R}

(1/4)*V_DD+ [(9+1)/32]*V_DD= [(9+9)/32]*V_DD= (18/32)*V_DD.

=

gpcs

gpcc

padier

= 0b1_0_00_1001;

= 0b1_0_0_0_000_0;

= 0bxxxx_0_xxx;

// V_{internal R}= V_DD*(18/32)

// enable comp, - input: PA3, + input: V_{internal R}

// disable PA3 digital input to prevent leakage current

or

$ GPCS

V_DD*18/32;

$ GPCC Enable, N_PA3, P_R;

PADIER = 0bxxxx_0_xxx;

// - input: N_xx，+ input: P_R(V_{internal R})

Case B:

Choosing V_{internal R}as minus input with (14/32)*V_DDvoltage level and PA4 as plus input, the comparator

result will be inversed and then output to PA0. V_{internal R}is configured as the above Figure “gpcs[5:4] = 2b’10”

and gpcs [3:0] = 4b’1101 (n=13) to have V_{internal R}= (1/5)*V_DD+ [(13+1)/40]*V_DD= [(13+9)/40]*V_DD

(22/40)*V_DD.

=

gpcs

gpcc

padier

= 0b1_0_10_1101;

= 0b1_0_0_1_011_1;

= 0bxxx_0_xxxx;

// output to PA0, V_{internal R}= V_DD*(22/40)

// Inverse output, - input: V_{internal R}, + input: PA4

// disable PA4 digital input to prevent leakage current

or

$ GPCS

$ GPCC

Output, V_DD*22/40;

Enable, Inverse, N_R, P_PA4; // - input: N_R(V_{internal R})，+ input: P_xx

PADIER = 0bxxx_0_xxxx;

Note: When selecting output to PA0 output, GPCS will affect the PA3 output function in ICE. Though the IC

is fine, be careful to avoid this error during emulation.

Page 28 of 67

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PMS150C

8 bit IO-Type Controller

5.5.3. Using the comparator and band-gap 1.20V

The internal band-gap module provides a stable 1.20V output, and it can be used to measure the external

supply voltage level. The band-gap 1.20V is selected as minus input of comparator and V_{internal R}is selected

as plus input, the supply voltage of V_{internal R}is VDD, the V_DDvoltage level can be detected by adjusting the

voltage level of V_{internal R}to compare with band-gap. If N (gpcs[3:0] in decimal) is the number to let V_{internal R}

closest to band-gap 1.20 volt, the supply voltage VDD can be calculated by using the following equations:

For using Case 1: V_DD= [ 32 / (N+9) ] * 1.20 volt ;

For using Case 2: V_DD= [ 24 / (N+1) ] * 1.20 volt ;

For using Case 3: V_DD= [ 40 / (N+9) ] * 1.20 volt ;

For using Case 4: V_DD= [ 32 / (N+1) ] * 1.20 volt ;

Case 1:

$ GPCS

V_DD*12/40;

// 4.0V * 12/40 = 1.2V

$ GPCC Enable, BANDGAP, P_R; // - input: BANDGAP, + input: P_R(V_{internal R}

)

….

if (GPC_Out)

// or GPCC.6

{

// when V_DD﹥4V

}

else

{

}

// when V_DD﹤4V

Page 29 of 67

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PMS150C

8 bit IO-Type Controller

5.6. 16-bit Timer (Timer16)

PMS150C provide a 16-bit hardware timer (Timer16) and its clock source may come from system clock (CLK),

internal high RC oscillator (IHRC), internal low RC oscillator (ILRC), PA0 or PA4. Before sending clock to the

16-bit counter, a pre-scaling logic with divided-by-1, 4, 16 or 64 is selectable for wide range counting. The

16-bit counter performs up-counting operation only, the counter initial values can be stored from data memory

by issuing the stt16 instruction and the counting values can be loaded to data memory by issuing the ldt16

instruction. The interrupt request from Timer16 will be triggered by the selected bit which comes from bit[15:8]

of this 16-bit counter, rising edge or falling edge can be optional chosen by register integs.4. The hardware

diagram of Timer16 is shown as Fig. 8.

stt16 command

DATA Memory

t16m[7:5]

t16m[4:3]

ldt16 command

CLK

IHRC

ILRC

PA0

M

U

X

Pre-

scalar

÷

1, 4,

16, 64

16-bit

up

counter

Bit[15:0]

Data Bus

PA4

Bit[15:8]

M

U

X

To set

interrupt

request flag

or

t16m[2:0]

integs.4

Fig. 8: Hardware diagram of Timer16

When using the Timer16, the syntax for Timer16 has been defined in the .INC file. There are three

parameters to define the Timer16 using; 1^stparameter is used to define the clock source of Timer16, 2^nd

parameter is used to define the pre-scalar and the 3^rdone is to define the interrupt source.

T16M

$ 7~5:

IO_RW

0x06

STOP, SYSCLK, X, PA4_F, IHRC, X, ILRC, PA0_F

/1, /4, /16, /64

// 1^stpar.

// 2^ndpar.

// 3^rdpar.

$ 4~3:

$ 2~0:

BIT8, BIT9, BIT10, BIT11, BIT12, BIT13, BIT14, BIT15

User can choose the proper parameters of T16M to meet system requirement, examples as below:

$

T16M

SYSCLK, /64, BIT15;

// choose (SYSCLK/64) as clock source, every 2^16 clock to set INTRQ.2=1

// if system clock SYSCLK = IHRC / 2 = 8 MHz

// SYSCLK/64 = 8 MHz/64 = 8 uS, about every 524 mS to generate INTRQ.2=1

$

T16M

PA0, /1, BIT8;

// choose PA0 as clock source, every 2^9 to generate INTRQ.2=1

// receiving every 512 times PA0 to generate INTRQ.2=1

T16M

STOP;

// stop Timer16 counting

Page 30 of 67

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PMS150C

8 bit IO-Type Controller

5.7. 8-bit timer (Timer2) with PWM generation

One 8-bit hardware timer (Timer2/TM2) with PWM generation is implemented in the PMS150C. Please refer

to Fig. 9 shown its hardware diagram, the clock sources of Timer2 may come from system clock, internal high

RC oscillator (IHRC) or, internal low RC oscillator (ILRC), PA0 or PA4. Bit[7:4] of register tm2c are used to

select the clock source of Timer2. Please notice that if IHRC is selected for Timer2 clock source, the clock

sent to Timer2 will keep running when using ICE in halt state. The output of Timer2 can be sent to pin PA3 or

PA4, depending on bit [3-2] of tm2c register. A clock pre-scaling module is provided with divided-by-1, 4, 16,

and 64 options, controlled by bit [6:5] of tm2s register; one scaling module with divided-by-1~31 is also

provided and controlled by bit [4:0] of tm2s register. In conjunction of pre-scaling function and scaling function,

the frequency of Timer2 clock (TM2_CLK) can be wide range and flexible.

The Timer2 counter performs 8-bit up-counting operation only; the counter values can be set or read back by

tm2ct register. The 8-bit counter will be clear to zero automatically when its values reach for upper bound

register, the upper bound register is used to define the period of timer or duty of PWM. There are two

operating modes for Timer2: period mode and PWM mode; period mode is used to generate periodical output

waveform or interrupt event; PWM mode is used to generate PWM output waveform with optional 6-bit or

8-bit PWM resolution, Fig. 10 shows the timing diagram of Timer2 for both period mode and PWM mode.

TM2_CLK

tm2s.7

tm2c.1

tm2c[7:4]

tm2s[6:5] tm2s[4:0]

Pre-

edge to

interrupt

8-bit

up

counter

CLK,

IHRC,

ILRC,

Cmp,

PA0,

~PA0,

PA4,

~PA4

tm2ct[7:0]

PA4

scalar

÷

Scalar

÷

M

U

X

1, 4,

16, 64

1 ~ 31

X

O

R

D

E

M

U

X

PA3

upper

bound

register

tm2c.0

tm2b[7:0]

tm2c[3:2]

Fig. 9: Timer2 hardware diagram

Page 31 of 67

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PMS150C

8 bit IO-Type Controller

Time out and

Interrupt request

Time out and

Interrupt request

Time out and

Interrupt request

Counter

0xFF

bound

Counter

0xFF

Counter

0x3F

bound

Time

Event Trigger

Output-pin

Time

Mode 0 – Period Mode

Mode 1 – 8-bit PWM Mode

Mode 1 – 6-bit PWM Mode

Fig. 10: Timing diagram of Timer2 in period mode and PWM mode (tm2c.1=1)

5.7.1. Using the Timer2 to generate periodical waveform

If periodical mode is selected, the duty cycle of output is always 50%; its frequency can be summarized as

below:

Frequency of Output = Y ÷ [2 × (K+1) × S1 × (S2+1) ]

Where,

Y = tm2c[7:4] : frequency of selected clock source

K = tm2b[7:0] : bound register in decimal

S1 = tm2s[6:5] : pre-scalar (1, 4, 16, 64)

S2 = tm2s[4:0] : scalar register in decimal (1 ~ 31)

Example 1:

tm2c = 0b0001_1000, Y=8MHz

tm2b = 0b0111_1111, K=127

tm2s = 0b0_00_00000, S1=1, S2=0

 frequency of output = 8MHz ÷ [ 2 × (127+1) × 1 × (0+1) ] = 31.25kHz

Example 2:

Example 3:

tm2c = 0b0001_1000, Y=8MHz

tm2b = 0b0111_1111, K=127

tm2s[7:0] = 0b0_11_11111, S1=64 , S2 = 31

 frequency = 8MHz ÷ ( 2 × (127+1) × 64 × (31+1) ) =15.25Hz

tm2c = 0b0001_1000, Y=8MHz

tm2b = 0b0000_1111, K=15

tm2s = 0b0_00_00000, S1=1, S2=0

 frequency = 8MHz ÷ ( 2 × (15+1) × 1 × (0+1) ) = 250kHz

Example 4:

tm2c = 0b0001_1000, Y=8MHz

tm2b = 0b0000_0001, K=1

tm2s = 0b0_00_00000, S1=1, S2=0

 frequency = 8MHz ÷ ( 2 × (1+1) × 1 × (0+1) ) =2MHz

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8 bit IO-Type Controller

The sample program for using the Timer2 to generate periodical waveform to PA3 is shown as below:

void FPPA0 (void)

{

. ADJUST_IC

…

SYSCLK=IHRC/2, IHRC=16MHz, V_DD=5V

tm2ct = 0x0;

tm2b = 0x7f;

tm2s = 0b0_00_00001;

tm2c = 0b0001_10_0_0;

//

8-bit PWM, pre-scalar = 1, scalar = 2

system clock, output=PA3, period mode

while(1)

{

nop;

}

5.7.2. Using the Timer2 to generate 8-bit PWM waveform

If 8-bit PWM mode is selected, it should set tm2c[1]=1 and tm2s[7]=0, the frequency and duty cycle of output

waveform can be summarized as below:

Frequency of Output = Y ÷ [256 × S1 × (S2+1) ]

Duty of Output = ( K+1 ) ÷ 256

Where, Y = tm2c[7:4] : frequency of selected clock source

K = tm2b[7:0] : bound register in decimal

S1= tm2s[6:5] : pre-scalar (1, 4, 16, 64)

S2 = tm2s[4:0] : scalar register in decimal (1 ~ 31)

Example 1:

tm2c = 0b0001_1010, Y=8MHz

tm2b = 0b0111_1111, K=127

tm2s = 0b0_00_00000, S1=1, S2=0

 frequency of output = 8MHz ÷ ( 256 × 1 × (0+1) ) = 31.25kHz

 duty of output = [(127+1) ÷ 256] × 100% = 50%

Example 2:

tm2c = 0b0001_1010, Y=8MHz

tm2b = 0b0111_1111, K=127

tm2s = 0b0_11_11111, S1=64, S2=31

 frequency of output = 8MHz ÷ ( 256 × 64 × (31+1) ) = 15.25Hz

 duty of output = [(127+1) ÷ 256] × 100% = 50%

Example 3:

tm2c = 0b0001_1010, Y=8MHz

tm2b = 0b1111_1111, K=255

tm2s = 0b0_00_00000, S1=1, S2=0

 frequency of output = 8MHz ÷ ( 256 × 1 × (0+1) ) = 31.25kHz

 duty of output = [(255+1) ÷ 256] × 100% = 100%

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8 bit IO-Type Controller

Example 4:

tm2c = 0b0001_1010, Y=8MHz

tm2b = 0b0000_1001, K = 9

tm2s = 0b0_00_00000, S1=1, S2=0

 frequency of output = 8MHz ÷ ( 256 × 1 × (0+1) ) = 31.25kHz

 duty of output = [(9+1) ÷ 256] × 100% = 3.9%

The sample program for using the Timer2 to generate PWM waveform from PA3 is shown as below:

void

{

FPPA0 (void)

.ADJUST_IC SYSCLK=IHRC/2, IHRC=16MHz, V_DD=5V

wdreset;

tm2ct = 0x0;

tm2b = 0x7f;

tm2s = 0b0_00_00001;

//

8-bit PWM, pre-scalar = 1, scalar = 2

system clock, output=PA3, PWM mode

tm2c = 0b0001_10_1_0;

while(1)

{

nop;

}

5.7.3. Using the Timer2 to generate 6-bit PWM waveform

If 6-bit PWM mode is selected, it should set tm2c[1]=1 and tm2s[7]=1, the frequency and duty cycle of output

waveform can be summarized as below:

Frequency of Output = Y ÷ [64 × S1 × (S2+1) ]

Duty of Output = [( K＋1 ) ÷ 64] × 100%

Where, tm2c[7:4] = Y : frequency of selected clock source

tm2b[7:0] = K : bound register in decimal

tm2s[6:5] = S1 : pre-scalar (1, 4, 16, 64)

tm2s[4:0] = S2 : scalar register in decimal (1 ~ 31)

Example 1:

tm2c = 0b0001_1010, Y=8MHz

tm2b = 0b0001_1111, K=31

tm2s = 0b1_00_00000, S1=1, S2=0

 frequency of output = 8MHz ÷ ( 64 × 1 × (0+1) ) = 125kHz

 duty = [(31+1) ÷ 64] × 100% = 50%

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8 bit IO-Type Controller

Example 2:

Example 3:

Example 4:

tm2c = 0b0001_1010, Y=8MHz

tm2b = 0b0001_1111, K=31

tm2s = 0b1_11_11111, S1=64, S2=31

 frequency of output = 8MHz ÷ ( 64 × 64 × (31+1) ) = 61.03 Hz

 duty of output = [(31+1) ÷ 64] × 100% = 50%

tm2c = 0b0001_1010, Y=8MHz

tm2b = 0b0011_1111, K=63

tm2s = 0b1_00_00000, S1=1, S2=0

 frequency of output = 8MHz ÷ ( 64 × 1 × (0+1) ) = 125kHz

 duty of output = [(63+1) ÷ 64] × 100% = 100%

tm2c = 0b0001_1010, Y=8MHz

tm2b = 0b0000_0000, K=0

tm2s = 0b1_00_00000, S1=1, S2=0

 frequency = 8MHz ÷ ( 64 × 1 × (0+1) ) = 125kHz

 duty = [(0+1) ÷ 64] × 100% =1.5%

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8 bit IO-Type Controller

5.8. Watchdog Timer

The watchdog timer (WDT) is a counter with clock coming from ILRC and its frequency is about 62KHz@5V.

There are 4 different timeout periods of watchdog timer can be chosen by setting the misc register, it is:

 256k ILRC clock period when misc[1:0]=11

 64k ILRC clock period when misc[1:0]=10

 16k ILRC clock period when misc[1:0]=01

 8k ILRC clock period when misc[1:0]=00 (default)

The frequency of ILRC may drift a lot due to the variation of manufacture, supply voltage and temperature;

user should reserve guard band for safe operation. WDT can be cleared by power-on-reset or by command

wdreset at any time. When WDT is timeout, PMS150C will be reset to restart the program execution. The

relative timing diagram of watchdog timer is shown as Fig. 11.

VDD

t

SBP

WD

Time Out

Program

Execution

Watch Dog Time Out Sequence

Fig. 11: Sequence of Watch Dog Time Out

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8 bit IO-Type Controller

5.9. Interrupt

There are four interrupt lines for PMS150C:



External interrupt PA0

GPC interrupt

Timer16 interrupt

Timer2 interrupt

Every interrupt request line has its own corresponding interrupt control bit to enable or disable it; the hardware

diagram of interrupt function is shown as Fig. 12. All the interrupt request flags are set by hardware and

cleared by writing intrq register. When the request flags are set, it can be rising edge, falling edge or both,

depending on the setting of register integs. All the interrupt request lines are also controlled by engint

instruction (enable global interrupt) to enable interrupt operation and disgint instruction (disable global

interrupt) to disable it. The stack memory for interrupt is shared with data memory and its address is specified

by stack register sp. Since the program counter is 16 bits width, the bit 0 of stack register sp should be kept 0.

Moreover, user can use pushaf / popaf instructions to store or restore the values of ACC and flag register to

/ from stack memory.

Since the stack memory is shared with data memory, the stack position and level are arranged by the

compiler in Mini-C project. When defining the stack level in ASM project, users should arrange their locations

carefully to prevent address conflicts.

Fig. 12: Hardware diagram of Interrupt controller

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Once the interrupt occurs, its operation will be:

 The program counter will be stored automatically to the stack memory specified by register sp.

 New sp will be updated to sp+2.

 Global interrupt will be disabled automatically.

 The next instruction will be fetched from address 0x010.

During the interrupt service routine, the interrupt source can be determined by reading the intrq register.

Note: Even if INTEN=0, INTRQ will be still triggered by the interrupt source.

After finishing the interrupt service routine and issuing the reti instruction to return back, its operation will be:

 The program counter will be restored automatically from the stack memory specified by register sp.

 New sp will be updated to sp-2.

 Global interrupt will be enabled automatically.

 The next instruction will be the original one before interrupt.

User must reserve enough stack memory for interrupt, two bytes stack memory for one level interrupt and four

bytes for two levels interrupt. And so on, two bytes stack memory is for pushaf. For interrupt operation, the

following sample program shows how to handle the interrupt, noticing that it needs four bytes stack memory

to handle interrupt and pushaf.

void

{

FPPA0

(void)

...

$

INTEN PA0;

// INTEN =1; interrupt request when PA0 level changed

// clear INTRQ

INTRQ

ENGINT

...

=

0;

// global interrupt enable

DISGINT

...

// global interrupt disable

}

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PMS150C

8 bit IO-Type Controller

void Interrupt (void)

// interrupt service routine

{

PUSHAF

// store ALU and FLAG register

// If INTEN.PA0 will be opened and closed dynamically,

// user can judge whether INTEN.PA0 =1 or not.

// Example: If (INTEN.PA0 && INTRQ.PA0) {…}

// If INTEN.PA0 is always enable,

// user can omit the INTEN.PA0 judgement to speed up interrupt service routine.

If (INTRQ.PA0)

{

// Here for PA0 interrupt service routine

INTRQ.PA0 = 0;

...

// Delete corresponding bit (take PA0 for example)

}

...

// X : INTRQ = 0;

// It is not recommended to use INTRQ = 0 to clear all at the end of

// the interrupt service routine.

// It may accidentally clear out the interrupts that have just occurred

// and are not yet processed.

POPAF

// restore ALU and FLAG register

}

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8 bit IO-Type Controller

5.10.Power-Save and Power-Down

There are three operational modes defined by hardware: ON mode, Power-Save mode and Power-Down

modes. ON mode is the state of normal operation with all functions ON, Power-Save mode (“stopexe”) is the

state to reduce operating current and CPU keeps ready to continue, Power-Down mode (“stopsys”) is used

to save power deeply. Therefore, Power-Save mode is used in the system which needs low operating power

with wake-up occasionally and Power-Down mode is used in the system which needs power down deeply

with seldom wake-up. Table 3 shows the differences in oscillator modules between Power-Save mode

(“stopexe”) and Power-Down mode (“stopsys”).

Differences in oscillator modules between STOPSYS and STOPEXE

IHRC

Stop

ILRC

Stop

STOPSYS

STOPEXE

No Change

Table 3: Differences in oscillator modules between STOPSYS and STOPEXE

5.10.1. Power-Save mode (“stopexe”)

Using “stopexe” instruction to enter the Power-Save mode, only system clock is disabled, remaining all the

oscillator modules be active. For CPU, it stops executing; however, for Timer16, counter keep counting if its

clock source is not the system clock. The wake-up sources for “stopexe” can be IO-toggle or Timer16

counts to set values when the clock source of Timer16 is IHRC or ILRC modules. Wake-up from input pins

can be considered as a continuation of normal execution, the detail information for Power-Save mode

shown below:



IHRC and ILRC oscillator modules: No change, keep active if it was enabled.

System clock: Disable, therefore, CPU stops execution.

OTP memory is turned off.

Timer16, Timer2: Stop counting if system clock is selected by clock source or the corresponding

oscillator module is disabled; otherwise, it keeps counting.



Wake-up sources: IO toggle in digital mode (PxDIER bit is 1) or Timer16 or Timer2.

The watchdog timer must be disabled before issuing the “stopexe” command, the example is shown as

below:

CLKMD.En_WatchDog

stopexe;

….

Wdreset;

CLKMD.En_WatchDog

=

0;

1;

// disable watchdog timer

// power saving

// enable watchdog timer

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8 bit IO-Type Controller

Another example shows how to use Timer16 to wake-up from “stopexe”:

$ T16M ILRC, /1, BIT8

…

// Timer16 setting

WORD

STT16

stopexe;

…

count

count;

=

0;

The initial counting value of Timer16 is zero and the system will be waken up after the Timer16 counts 256

ILRC clocks.

5.10.2. Power-Down mode (“stopsys”)

Power-Down mode is the state of deeply power-saving with turning off all the oscillator modules. By using

the “stopsys” instruction, this chip will be put on Power-Down mode directly. The following shows the internal

status of PMS150C in detail when “stopsys” command is issued:

 All the oscillator modules are turned off.

 OTP memory is turned off.

 The contents of SRAM and registers remain unchanged.

 Wake-up sources: IO toggle in digital mode (PxDIER bit is 1)

Wake-up from input pins can be considered as a continuation of normal execution. To minimize power

consumption, all the I/O pins should be carefully manipulated before entering power-down mode. The

reference sample program for power down is shown as below:

CMKMD

=

0xF4;

0;

//

Change clock from IHRC to ILRC, disable watchdog timer

disable IHRC

CLKMD.4 =

…

while (1)

{

STOPSYS;

//

enter power-down

if (…) break;

if wakeup happen and check OK, then return to high speed,

else stay in power-down mode again.

}

CLKMD

=

0x34;

//

Change clock from ILRC to IHRC/2

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8 bit IO-Type Controller

5.10.3. Wake-up

After entering the Power-Down or Power-Save modes, the PMS150C can be resumed to normal operation

by toggling IO pins, Timer16, Timer2 interrupt is available for Power-Save mode ONLY. Table 4 shows the

differences in wake-up sources between STOPSYS and STOPEXE.

Differences in wake-up sources between STOPSYS and STOPEXE

IO Toggle

Yes

T16 Interrupt

STOPSYS

STOPEXE

No

Yes

Table 4: Differences in wake-up sources between Power-Save mode and Power-Down mode

When using the IO pins to wake-up the PMS150C, registers padier should be properly set to enable the

wake-up function for every corresponding pin. The time for normal wake-up is about 2048 ILRC clocks

counting from wake-up event; fast wake-up can be selected to reduce the wake-up time by misc register,

and the time for fast wake-up is 32 ILRC clocks from IO toggling.

Suspend mode

Wake-up mode

Wake-up time (t_WUP) from IO toggle

STOPEXE suspend

or

32 * T_ILRC,

Where T_ILRCis the time period of ILRC

fast wake-up

STOPSYS suspend

STOPEXE suspend

or

2048 * T_ILRC

,

normal wake-up

Where T_ILRCis the clock period of ILRC

STOPSYS suspend

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8 bit IO-Type Controller

5.11.IO Pins

Other than PA5, all the pins can be independently set into two states output or input by configuring the data

registers (pa), control registers (pac) and pull-high registers (paph). All these pins have Schmitt-trigger input

buffer and output driver with CMOS level. When it is set to output low, the pull-up resistor is turned off

automatically. If user wants to read the pin state, please notice that it should be set to input mode before

reading the data port; if user reads the data port when it is set to output mode, the reading data comes from

data register, NOT from IO pad. As an example, Table 5 shows the configuration table of bit 0 of port A. The

hardware diagram of IO buffer is also shown as Fig. 13.

pa.0 pac.0 paph.0

Description

X

0

1

0

1

0

1

X

0

1

Input without pull-up resistor

Input with pull-up resistor

Output low without pull-up resistor

Output high without pull-up resistor

Output high with pull-up resistor

Table 5: PA0 Configuration Table

RD pull-high latch

WR pull-high latch

D

Q

(weak P-MOS)

pull-high

latch

Q

Data

latch

Q1

PAD

WR data latch

RD control latch

Q

WR control latch

Control

latch

M

U

X

RD Port

Data Bus

padier.x

Wakeup module

Interrupt module

(PA0 only)

Analog Module

Fig. 13: Hardware diagram of IO buffer

Most IOs can be adjusted their Driving or Sinking current capability to Normal or Low by code option Drive.

Other than PA5, all the IO pins have the same structure; PA5 can be open-drain ONLY when setting to output

mode (without Q1). When PMS150C is put in power-down or power-save mode, every pin can be used to

wake-up system by toggling its state. Therefore, those pins needed to wake-up system must be set to input

mode and set the corresponding bits of registers padier to high. The same reason, padier.0 should be set to

high when PA0 is used as external interrupt pin.

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8 bit IO-Type Controller

5.12. Reset

There are many causes to reset the PMS150C, once reset is asserted, all the registers in PMS150C will be

set to default values, system should be restarted once abnormal cases happen, or by jumping program

counter to address ’h0. The data memory is in uncertain state when reset comes from power-up and LVR;

however, the content will be kept when reset comes from PRST# pin or WDT timeout.

6. IO Registers

6.1. ACC Status Flag Register (flag), IO address = 0x00

Bit

7 - 4

3

Reset R/W

Description

-

Reserved. These four bits are “1” when read.

R/W OV (Overflow). This bit is set whenever the sign operation is overflow.

AC (Auxiliary Carry). There are two conditions to set this bit, the first one is carry out of low

R/W nibble in addition operation, and the other one is borrow from the high nibble into low nibble

in subtraction operation.

2

-

C (Carry). There are two conditions to set this bit, the first one is carry out in addition

R/W operation, and the other one is borrow in subtraction operation. Carry is also affected by

shift with carry instruction.

1

0

-

Z (Zero). This bit will be set when the result of arithmetic or logic operation is zero;

R/W

Otherwise, it is cleared.

6.2. Stack Pointer Register (sp), IO address = 0x02

Bit

Reset R/W

Description

Stack Pointer Register. Read out the current stack pointer, or write to change the stack

pointer. Please notice that bit 0 should be kept 0 due to program counter is 16 bits.

7 - 0

-

R/W

6.3. Clock Mode Register (clkmd), IO address = 0x03

Bit

Reset R/W

Description

System clock selection:

Type 0, clkmd[3]=0

Type 1, clkmd[3]=1

000: IHRC÷ 4

001: IHRC÷ 2

01x: reserved

10x: reserved

000: IHRC÷ 16

001: IHRC÷ 8

7 - 5

111 R/W

010: ILRC÷ 16 (ICE does NOT Support.)

011: IHRC÷ 32

110: ILRC÷ 4

100: IHRC÷ 64

111: ILRC (default)

1xx: reserved

4

3

1

0

R/W IHRC oscillator Enable. 0 / 1: disable / enable

Clock Type Select. This bit is used to select the clock type in bit [7:5].

0 / 1: Type 0 / Type 1

RW

ILRC Enable. 0 / 1: disable / enable

2

1

R/W

If ILRC is disabled, watchdog timer is also disabled.

1

0

1

0

R/W Watch Dog Enable. 0 / 1: disable / enable

R/W Pin PA5/PRST# function. 0 / 1: PA5 / PRST#

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6.4. Interrupt Enable Register (inten), IO address = 0x04

Bit

Reset R/W

Description

7,5,3,1

-

Reserved.

6

4

2

0

R/W Enable interrupt from Timer2. 0 / 1: disable / enable.

R/W Enable interrupt from comparator. 0 / 1: disable / enable.

R/W Enable interrupt from Timer16 overflow. 0 / 1: disable / enable.

R/W Enable interrupt from PA0. 0 / 1: disable / enable.

6.5. Interrupt Request Register (intrq), IO address = 0x05

Bit

Reset R/W

Description

7,5,3,1

-

Reserved.

Interrupt Request from Timer2, this bit is set by hardware and cleared by software.

0 / 1: No request / Request

6

4

2

0

-

R/W

Interrupt Request from comparator, this bit is set by hardware and cleared by software.

0 / 1: No request / Request

-

R/W

Interrupt Request from Timer16, this bit is set by hardware and cleared by software.

0 / 1: No request / Request

Interrupt Request from pin PA0, this bit is set by hardware and cleared by software.

0 / 1: No request / Request

6.6. Timer 16 mode Register (t16m), IO address = 0x06

Bit

Reset R/W

Description

Timer Clock source selection

000: Timer 16 is disabled

001: CLK (system clock)

010: reserved

7 - 5

000 R/W 011: PA4 falling edge (from external pin)

100: IHRC

101: reserved

110: ILRC

111: PA0 falling edge (from external pin)

Internal clock divider.

00: ÷ 1

4 - 3

00

R/W 01: ÷ 4

10: ÷ 16

11: ÷ 64

Interrupt source selection. Interrupt event happens when selected bit is changed.

0 : bit 8 of Timer16

1 : bit 9 of Timer16

2 : bit 10 of Timer16

2 - 0

000 R/W 3 : bit 11 of Timer16

4 : bit 12 of Timer16

5 : bit 13 of Timer16

6 : bit 14 of Timer16

7 : bit 15 of Timer16

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6.7. External Oscillator setting Register (eoscr, write only), IO address = 0x0a

Bit

7 - 1

0

Reset R/W

Description

-

Reserved. Please keep 0.

0

WO Power-down the LVR hardware modules. 0 / 1: normal / power-down.

6.8. Interrupt Edge Select Register (integs), IO address = 0x0c

Bit

Reset R/W

Description

Comparator edge selection.

00 : both rising edge and falling edge to trigger interrupt

7 - 6

00

WO 01 : rising edge to trigger interrupt

10 : falling edge to trigger interrupt

11 : reserved.

5

4

-

0

-

Reserved. Please keep 0.

Timer16 edge selection.

WO 0 : rising edge to trigger interrupt

1 : falling edge to trigger interrupt

3 - 2

-

Reserved.

PA0 edge selection.

00 : both rising edge and falling edge to trigger interrupt

1 - 0

00

WO 01 : rising edge to trigger interrupt

10 : falling edge to trigger interrupt

11 : reserved.

6.9. Port A Digital Input Enable Register (padier), IO address = 0x0d

Bit

Reset R/W

Description

Enable PA7~PA3 wake up event. 1 / 0 : enable / disable.

These bits can be set to low to disable wake up from PA7~PA3 toggling.

7 - 3 11111 WO

2 - 1

0

-

Reserved.

Enable PA0 wake up event and interrupt request. 1 / 0 : enable / disable.

This bit can be set to low to disable wake up from PA0 toggling and interrupt request from

this pin.

1

WO

6.10.Port A Data Registers (pa), IO address = 0x10

Bit

Reset R/W

Description

7 - 0 8’h00 R/W Data registers for Port A.

6.11.Port A Control Registers (pac), IO address = 0x11

Bit

Reset R/W

Description

Port A control registers. This register is used to define input mode or output mode for each

corresponding pin of port A. 0 / 1: input / output.

7 - 0 8’h00 R/W

6.12.Port A Pull-High Registers (paph), IO address = 0x12

Bit

Reset R/W

Description

Port A pull-high registers. This register is used to enable the internal pull-high device on

each corresponding pin of port A. 0 / 1 : disable / enable

7 - 0 8’h00 R/W

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6.13.MISC Register (misc), IO address = 0x1b

Bit

Reset R/W

Description

7 - 6

-

WO

-

Reserved

Enable fast Wake up.

0: Normal wake up.

The wake-up time is 2048 ILRC clocks if normal boot up is selected.

The wake-up time is 32 ILRC clocks if fast boot up is selected.

5

0

1: Fast wake up.

The wake-up time is 32 ILRC clocks for both normal boot up and fast boot up.

Reserved

4

3

-

0

WO Reserved.

Disable LVR function.

2

0

WO

0 / 1 : Enable / Disable

Watch dog time out period

00: 8k ILRC clock period

1 - 0

00

WO 01: 16k ILRC clock period

10: 64k ILRC clock period

11: 256k ILRC clock period

6.14.Comparator Control Register (gpcc), IO address = 0x1A

Bit

Reset R/W

Description

Enable comparator.

0 / 1 : disable / enable

7

0

R/W

RO

When this bit is set to enable, please also set the corresponding analog input pins to be

digital disable to prevent IO leakage.

Comparator result of comparator.

6

5

4

-

0: plus input < minus input

1: plus input > minus input

Select whether the comparator result output will be sampled by TM2_CLK?

0

R/W 0: result output NOT sampled by TM2_CLK

1: result output sampled by TM2_CLK

Inverse the polarity of result output of comparator.

R/W 0: polarity is NOT inversed.

1: polarity is inversed.

Selection the minus input (-) of comparator.

000 : PA3

001 : PA4

010 : Internal 1.20 volt band-gap reference voltage

3 - 1

000

R/W

011 : V_{internal R}

100 : PA6 (not for 5S-I-S0xx)

101 : PA7 (not for 5S-I-S0xx)

11X : reserved

Selection the plus input (+) of comparator.

R/W 0 : V_{internal R}

0

1 : PA4

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PMS150C

8 bit IO-Type Controller

6.15.Comparator Selection Register (gpcs), IO address = 0x1E

Bit

Reset R/W

Description

Comparator output enable (to PA0).

0 / 1 : disable / enable

7

0

WO

(Please avoid this situation: GPCS will affect the PA3 output function when selecting

output to PA0 output in ICE.)

Wakeup by comparator enable.

6

0

WO

0 / 1 : disable / enable

5

4

0

WO Selection of high range of comparator.

WO Selection of low range of comparator.

Selection the voltage level of comparator.

3 - 0

0000

WO

0000 (lowest) ~ 1111 (highest)

6.16.Timer2 Control Register (tm2c), IO address = 0x1C

Bit Reset

R/W

Description

Timer2 clock selection.

0000 : disable

0001 : CLK

0010 : IHRC

0011 : reserved

0100 : ILRC

0101 : comparator output

1000 : PA0 (rising edge)

1001 : ~PA0 (falling edge)

1100 : PA4 (rising edge)

1101 : ~PA4 (falling edge)

Others: reserved

7 - 4

0000 R/W

Notice: In ICE mode and IHRC is selected for Timer2 clock, the clock sent to Timer2

does NOT be stopped, Timer2 will keep counting when ICE is in halt state.

Timer2 output selection.

00 : disable

3 - 2

00

R/W 01 : reserved

10 : PA3

11 : PA4 (not for 5S-I-S0xx)

Timer2 mode selection.

1

0

R/W

0 / 1 : period mode / PWM mode

Enable to inverse the polarity of Timer2 output.

0 / 1: disable / enable

6.17.Timer2 Counter Register (tm2ct), IO address = 0x1D

Bit

Reset R/W

Description

7 - 0

0x00 R/W Bit [7:0] of Timer2 counter register.

Page 48 of 67

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PMS150C

8 bit IO-Type Controller

6.18.Timer2 Bound Register (tm2b), IO address = 0x09

Bit

Reset R/W

Description

7 - 0

0x00 WO Timer2 bound register.

6.19.Timer2 Scalar Register (tm2s), IO address = 0x17

Bit

Reset R/W

Description

PWM resolution selection.

1 : 6-bit

7

0

WO 0 : 8-bit

Timer2 clock pre-scalar.

00 : ÷ 1

6 - 5

00

WO 01 : ÷ 4

10 : ÷ 16

11 : ÷ 64

4 - 0 00000 WO Timer2 clock scalar.

Page 49 of 67

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PMS150C

8 bit IO-Type Controller

7. Instructions

Symbol

Description

ACC

a

Accumulator ( Abbreviation of accumulator )

Accumulator ( Symbol of accumulator in program )

sp

flag

I

Stack pointer

ACC status flag register

Immediate data

&

Logical AND

|

Logical OR

←

Movement

^

Exclusive logic OR

+

Add

－

〜

〒

OV

Z

Subtraction

NOT (logical complement, 1’s complement)

NEG (2’s complement)

Overflow (The operational result is out of range in signed 2’s complement number system)

Zero (If the result of ALU operation is zero, this bit is set to 1)

Carry (The operational result is to have carry out for addition or to borrow carry for subtraction

in unsigned number system)

C

Auxiliary Carry (If there is a carry out from low nibble after the result of ALU operation, this bit is

set to 1)

AC

word

M.n

Only addressed in 0~0x1F (0~31) is allowed

Only addressed in 0~0xF (0~15) is allowed

The bit of register

IO.n

Page 50 of 67

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PMS150C

8 bit IO-Type Controller

7.1. Data Transfer Instructions

mov

a, I

Move immediate data into ACC.

Example: mov a, 0x0f;

Result: a ← 0fh;

Affected flags: 『N』Z 『N』C 『N』AC 『N』OV

M, a

a, M

Move data from ACC into memory

Example: mov

MEM, a;

Result: MEM ← a

Affected flags: 『N』Z 『N』C 『N』AC 『N』OV

Move data from memory into ACC

Example: mov

a, MEM ;

Result: a ← MEM; Flag Z is set when MEM is zero.

Affected flags: 『Y』Z 『N』C 『N』AC 『N』OV

a, IO

Move data from IO into ACC

Example: mov

a, pa ;

Result: a ← pa; Flag Z is set when pa is zero.

Affected flags: 『Y』Z 『N』C 『N』AC 『N』OV

IO, a

Move data from ACC into IO

Example: mov

Result: pa ← a

pa, a;

Affected flags: 『N』Z 『N』C 『N』AC 『N』OV

Move 16-bit counting values in Timer16 to memory in word.

Example: ldt16 word;

ldt16 word

Result:

word ← 16-bit timer

Affected flags: 『N』Z 『N』C 『N』AC 『N』OV

Application Example:

------------------------------------------------------------------------------------------------------------------------

word

…

T16val ;

// declare a RAM word

clear

stt16

…

lb@ T16val ;

hb@ T16val ;

T16val ;

// clear T16val (LSB)

// clear T16val (MSB)

// initial T16 with 0

set1

…

t16m.5 ;

// enable Timer16

set0

ldt16

….

t16m.5 ;

T16val ;

// disable Timer 16

// save the T16 counting value to T16val

------------------------------------------------------------------------------------------------------------------------

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PMS150C

8 bit IO-Type Controller

stt16 word

Store 16-bit data from memory in word to Timer16.

Example: stt16 word;

Result:

16-bit timer ←word

Affected flags: 『N』Z 『N』C 『N』AC 『N』OV

Application Example:

------------------------------------------------------------------------------------------------------------------------

word

…

T16val ;

// declare a RAM word

mov

stt16

…

a, 0x34 ;

lb@ T16val , a ;

a, 0x12 ;

// move 0x34 to T16val (LSB)

hb@ T16val , a ; // move 0x12 to T16val (MSB)

T16val ; // initial T16 with 0x1234

----------------------------------------------------------------------------------------------------------------------

idxm a, index Move data from specified memory to ACC by indirect method. It needs 2T to execute this

instruction.

Example: idxm a, index;

Result:

a ← [index], where index is declared by word.

Affected flags: 『N』Z 『N』C 『N』AC 『N』OV

Application Example:

-----------------------------------------------------------------------------------------------------------------------

word

…

RAMIndex ;

// declare a RAM pointer

mov

…

a, 0x5B ;

// assign pointer to an address (LSB)

// save pointer to RAM (LSB)

lb@RAMIndex, a ;

a, 0x00 ;

// assign 0x00 to an address (MSB), should be 0

hb@RAMIndex, a ; // save pointer to RAM (MSB)

idxm

a, RAMIndex ; // move memory data in address 0x5B to ACC

------------------------------------------------------------------------------------------------------------------------

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PMS150C

8 bit IO-Type Controller

Idxm index, a Move data from ACC to specified memory by indirect method. It needs 2T to execute this

instruction.

Example: idxm index, a;

Result:

[index] ← a; where index is declared by word.

Affected flags: 『N』Z 『N』C 『N』AC 『N』OV

Application Example:

------------------------------------------------------------------------------------------------------------------------

word

…

RAMIndex ;

// declare a RAM pointer

mov

…

a, 0x5B ;

// assign pointer to an address (LSB)

// save pointer to RAM (LSB)

lb@RAMIndex, a ;

a, 0x00 ;

// assign 0x00 to an address (MSB), should be 0

hb@RAMIndex, a ; // save pointer to RAM (MSB)

mov

idxm

a, 0xA5 ;

RAMIndex, a ;

// move 0xA5 to memory in address 0x5B

------------------------------------------------------------------------------------------------------------------------

Exchange data between ACC and memory

xch

M

Example: xch MEM ;

Result:

MEM ← a , a ← MEM

Affected flags: 『N』Z 『N』C 『N』AC 『N』OV

Move the ACC and flag register to memory that address specified in the stack pointer.

Example: pushaf;

pushaf

Result:

[sp] ← {flag, ACC};

sp ← sp + 2 ;

Affected flags: 『N』Z 『N』C 『N』AC 『N』OV

Application Example:

------------------------------------------------------------------------------------------------------------------------

.romadr 0x10 ;

// ISR entry address

pushaf ;

…

// put ACC and flag into stack memory

// ISR program

…

// ISR program

popaf ;

reti ;

// restore ACC and flag from stack memory

------------------------------------------------------------------------------------------------------------------------

Restore ACC and flag from the memory which address is specified in the stack pointer.

Example: popaf;

popaf

Result:

sp ← sp - 2

{Flag, ACC} ← [sp] ;

Affected flags: 『Y』Z 『Y』C 『Y』AC 『Y』OV

;

Page 53 of 67

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PMS150C

8 bit IO-Type Controller

7.2. Arithmetic Operation Instructions

add

a, I

Add immediate data with ACC, then put result into ACC

Example: add a, 0x0f ;

Result: a ← a + 0fh

Affected flags: 『Y』Z 『Y』C 『Y』AC 『Y』OV

a, M

M, a

Add data in memory with ACC, then put result into ACC

Example: add

a, MEM ;

Result: a ← a + MEM

Affected flags: 『Y』Z 『Y』C 『Y』AC 『Y』OV

Add data in memory with ACC, then put result into memory

Example: add

MEM, a;

Result: MEM ← a + MEM

Affected flags: 『Y』Z 『Y』C 『Y』AC 『Y』OV

addc a, M

addc M, a

Add data in memory with ACC and carry bit, then put result into ACC

Example: addc

a, MEM ;

Result: a ← a + MEM + C

Affected flags: 『Y』Z 『Y』C 『Y』AC 『Y』OV

Add data in memory with ACC and carry bit, then put result into memory

Example: addc

MEM, a ;

Result: MEM ← a + MEM + C

Affected flags: 『Y』Z 『Y』C 『Y』AC 『Y』OV

addc

sub

a

Add carry with ACC, then put result into ACC

Example: addc

a ;

Result: a ← a + C

Affected flags: 『Y』Z 『Y』C 『Y』AC 『Y』OV

M

Add carry with memory, then put result into memory

Example: addc

MEM ;

Result: MEM ← MEM + C

Affected flags: 『Y』Z 『Y』C 『Y』AC 『Y』OV

a, I

a, M

M, a

Subtraction immediate data from ACC, then put result into ACC.

Example: sub

a, 0x0f;

Result: a ← a - 0fh ( a + [2’s complement of 0fh] )

Affected flags: 『Y』Z 『Y』C 『Y』AC 『Y』OV

sub

Subtraction data in memory from ACC, then put result into ACC

Example: sub

a, MEM ;

Result: a ← a - MEM ( a + [2’s complement of M] )

Affected flags: 『Y』Z 『Y』C 『Y』AC 『Y』OV

sub

Subtraction data in ACC from memory, then put result into memory

Example: sub

MEM, a;

Result: MEM ← MEM - a ( MEM + [2’s complement of a] )

Affected flags: 『Y』Z 『Y』C 『Y』AC 『Y』OV

subc a, M

Subtraction data in memory and carry from ACC, then put result into ACC

Example: subc

Result: a ← a – MEM - C

Affected flags: 『Y』Z 『Y』C 『Y』AC 『Y』OV

a, MEM;

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PMS150C

8 bit IO-Type Controller

subc M, a

Subtraction ACC and carry bit from memory, then put result into memory

Example: subc

MEM, a ;

Result: MEM ← MEM – a - C

Affected flags: 『Y』Z 『Y』C 『Y』AC 『Y』OV

subc

inc

a

Subtraction carry from ACC, then put result into ACC

Example: subc

a;

Result: a ← a - C

Affected flags: 『Y』Z 『Y』C 『Y』AC 『Y』OV

M

Subtraction carry from the content of memory, then put result into memory

Example: subc

MEM;

Result: MEM ← MEM - C

Affected flags: 『Y』Z 『Y』C 『Y』AC 『Y』OV

M

Increment the content of memory

Example: inc

MEM ;

Result: MEM ← MEM + 1

Affected flags: 『Y』Z 『Y』C 『Y』AC 『Y』OV

dec

M

Decrement the content of memory

Example: dec

MEM;

Result: MEM ← MEM - 1

Affected flags: 『Y』Z 『Y』C 『Y』AC 『Y』OV

clear

M

Clear the content of memory

Example: clear

Result: MEM ← 0

Affected flags: 『N』Z 『N』C 『N』AC 『N』OV

MEM ;

7.3. Shift Operation Instructions

sr

a

Shift right of ACC, shift 0 to bit 7

Example: sr a ;

Result: a (0,b7,b6,b5,b4,b3,b2,b1) ← a (b7,b6,b5,b4,b3,b2,b1,b0), C ← a(b0)

Affected flags: 『N』Z 『Y』C 『N』AC 『N』OV

Shift right of ACC with carry bit 7 to flag

src

sr

a

Example: src a ;

Result: a (c,b7,b6,b5,b4,b3,b2,b1) ← a (b7,b6,b5,b4,b3,b2,b1,b0), C ← a(b0)

Affected flags: 『N』Z 『Y』C 『N』AC 『N』OV

Shift right the content of memory, shift 0 to bit 7

M

Example: sr MEM ;

Result: MEM(0,b7,b6,b5,b4,b3,b2,b1) ← MEM(b7,b6,b5,b4,b3,b2,b1,b0), C ← MEM(b0)

Affected flags: 『N』Z 『Y』C 『N』AC 『N』OV

Shift right of memory with carry bit 7 to flag

src

sl

M

Example: src MEM ;

Result: MEM(c,b7,b6,b5,b4,b3,b2,b1) ← MEM (b7,b6,b5,b4,b3,b2,b1,b0), C ← MEM(b0)

Affected flags: 『N』Z 『Y』C 『N』AC 『N』OV

Shift left of ACC shift 0 to bit 0

a

Example: sl a ;

Result: a (b6,b5,b4,b3,b2,b1,b0,0) ← a (b7,b6,b5,b4,b3,b2,b1,b0), C ← a (b7)

Affected flags: 『N』Z 『Y』C 『N』AC 『N』OV

Page 55 of 67

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PMS150C

8 bit IO-Type Controller

slc

sl

a

Shift left of ACC with carry bit 0 to flag

Example: slc a ;

Result: a (b6,b5,b4,b3,b2,b1,b0,c) ← a (b7,b6,b5,b4,b3,b2,b1,b0), C ← a(b7)

Affected flags: 『N』Z 『Y』C 『N』AC 『N』OV

Shift left of memory, shift 0 to bit 0

M

Example: sl MEM ;

Result: MEM (b6,b5,b4,b3,b2,b1,b0,0) ← MEM (b7,b6,b5,b4,b3,b2,b1,b0), C ← MEM(b7)

Affected flags: 『N』Z 『Y』C 『N』AC 『N』OV

Shift left of memory with carry bit 0 to flag

slc

M

Example: slc MEM ;

Result: MEM (b6,b5,b4,b3,b2,b1,b0,C) ← MEM (b7,b6,b5,b4,b3,b2,b1,b0), C ← MEM (b7)

Affected flags: 『N』Z 『Y』C 『N』AC 『N』OV

Swap the high nibble and low nibble of ACC

swap

a

Example: swap

Result: a (b3,b2,b1,b0,b7,b6,b5,b4) ← a (b7,b6,b5,b4,b3,b2,b1,b0)

Affected flags: 『N』Z 『N』C 『N』AC 『N』OV

a ;

7.4. Logic Operation Instructions

and

a, I

a, M

M, a

a, I

Perform logic AND on ACC and immediate data, then put result into ACC

Example: and a, 0x0f ;

Result: a ← a & 0fh

Affected flags: 『Y』Z 『N』C 『N』AC 『N』OV

Perform logic AND on ACC and memory, then put result into ACC

Example: and

a, RAM10 ;

Result: a ← a & RAM10

Affected flags: 『Y』Z 『N』C 『N』AC 『N』OV

Perform logic AND on ACC and memory, then put result into memory

Example: and

MEM, a ;

Result: MEM ← a & MEM

Affected flags: 『Y』Z 『N』C 『N』AC 『N』OV

or

Perform logic OR on ACC and immediate data, then put result into ACC

Example: or

a, 0x0f ;

Result: a ← a | 0fh

Affected flags: 『Y』Z 『N』C 『N』AC 『N』OV

a, M

Perform logic OR on ACC and memory, then put result into ACC

Example: or

a, MEM ;

Result: a ← a | MEM

Affected flags: 『Y』Z 『N』C 『N』AC 『N』OV

M, a

a, I

Perform logic OR on ACC and memory, then put result into memory

Example: or

MEM, a ;

Result: MEM ← a | MEM

Affected flags: 『Y』Z 『N』C 『N』AC 『N』OV

xor

Perform logic XOR on ACC and immediate data, then put result into ACC

Example: xor

Result: a ← a ^ 0fh

Affected flags: 『Y』Z 『N』C 『N』AC 『N』OV

a, 0x0f ;

Page 56 of 67

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PMS150C

8 bit IO-Type Controller

xor

not

IO, a

a, M

M, a

a

Perform logic XOR on ACC and IO register, then put result into IO register

Example: xor

pa, a ;

Result: pa ← a ^ pa ; // pa is the data register of port A

Affected flags: 『N』Z 『N』C 『N』AC 『N』OV

Perform logic XOR on ACC and memory, then put result into ACC

Example: xor

a, MEM ;

Result: a ← a ^ RAM10

Affected flags: 『Y』Z 『N』C 『N』AC 『N』OV

Perform logic XOR on ACC and memory, then put result into memory

Example:

xor

MEM, a ;

Result:

MEM ← a ^ MEM

Affected flags: 『Y』Z 『N』C 『N』AC 『N』OV

Perform 1’s complement (logical complement) of ACC

Example: not

a ;

Result: a ← 〜a

Affected flags: 『Y』Z 『N』C 『N』AC 『N』OV

Application Example:

------------------------------------------------------------------------------------------------------------------------

mov

not

a, 0x38 ;

a ;

// ACC=0X38

// ACC=0XC7

------------------------------------------------------------------------------------------------------------------------

Perform 1’s complement (logical complement) of memory

not

M

Example: not

MEM ;

Result: MEM ← 〜MEM

Affected flags: 『Y』Z 『N』C 『N』AC 『N』OV

Application Example:

------------------------------------------------------------------------------------------------------------------------

mov

not

a, 0x38 ;

mem, a ;

mem ;

// mem = 0x38

// mem = 0xC7

------------------------------------------------------------------------------------------------------------------------

Perform 2’s complement of ACC

neg

a

Example: neg

a;

Result: a ← 〒a

Affected flags: 『Y』Z 『N』C 『N』AC 『N』OV

Application Example:

------------------------------------------------------------------------------------------------------------------------

mov

neg

a, 0x38 ;

a ;

// ACC=0X38

// ACC=0XC8

------------------------------------------------------------------------------------------------------------------------

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PMS150C

8 bit IO-Type Controller

neg

M

Perform 2’s complement of memory

Example: neg MEM;

Result: MEM ← 〒MEM

Affected flags: 『Y』Z 『N』C 『N』AC 『N』OV

Application Example:

------------------------------------------------------------------------------------------------------------------------

mov

not

a, 0x38 ;

mem, a ;

mem ;

// mem = 0x38

// mem = 0xC8

------------------------------------------------------------------------------------------------------------------------

7.5. Bit Operation Instructions

set0 IO.n

set1 IO.n

set0 M.n

set1 M.n

Set bit n of IO port to low

Example: set0 pa.5 ;

Result: set bit 5 of port A to low

Affected flags: 『N』Z 『N』C 『N』AC 『N』OV

Set bit n of IO port to high

Example: set1 pa.5 ;

Result: set bit 5 of port A to high

Affected flags: 『N』Z 『N』C 『N』AC 『N』OV

Set bit n of memory to low

Example: set0 MEM.5 ;

Result: set bit 5 of MEM to low

Affected flags: 『N』Z 『N』C 『N』AC 『N』OV

Set bit n of memory to high

Example: set1 MEM.5 ;

Result: set bit 5 of MEM to high

Affected flags: 『N』Z 『N』C 『N』AC 『N』OV

7.6. Conditional Operation Instructions

ceqsn a, I

Compare ACC with immediate data and skip next instruction if both are equal.

Flag will be changed like as (a ← a - I)

Example: ceqsn

a, 0x55 ;

MEM ;

error ;

inc

goto

Result: If a=0x55, then “goto error”; otherwise, “inc MEM”.

Affected flags: 『Y』Z 『Y』C 『Y』AC 『Y』OV

Compare ACC with memory and skip next instruction if both are equal.

Flag will be changed like as (a ← a - M)

ceqsn a, M

Example: ceqsn

a, MEM;

Result: If a=MEM, skip next instruction

Affected flags: 『Y』Z 『Y』C 『Y』AC 『Y』OV

t0sn IO.n

Check IO bit and skip next instruction if it’s low

Example: t0sn

pa.5;

Result: If bit 5 of port A is low, skip next instruction

Affected flags: 『N』Z 『N』C 『N』AC 『N』OV

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PMS150C

8 bit IO-Type Controller

t1sn IO.n

t0sn M.n

t1sn M.n

Check IO bit and skip next instruction if it’s high

Example: t1sn pa.5 ;

Result: If bit 5 of port A is high, skip next instruction

Affected flags: 『N』Z 『N』C 『N』AC 『N』OV

Check memory bit and skip next instruction if it’s low

Example: t0sn MEM.5 ;

Result: If bit 5 of MEM is low, then skip next instruction

Affected flags: 『N』Z 『N』C 『N』AC 『N』OV

Check memory bit and skip next instruction if it’s high

EX: t1sn MEM.5 ;

Result: If bit 5 of MEM is high, then skip next instruction

Affected flags: 『N』Z 『N』C 『N』AC 『N』OV

Increment ACC and skip next instruction if ACC is zero

izsn

dzsn

izsn

dzsn

a

Example: izsn

Result:

a;

a

←

a + 1,skip next instruction if a = 0

Affected flags: 『Y』Z 『Y』C 『Y』AC 『Y』OV

a

Decrement ACC and skip next instruction if ACC is zero

Example: dzsn

Result:

a;

A

←

A - 1,skip next instruction if a = 0

Affected flags: 『Y』Z 『Y』C 『Y』AC 『Y』OV

M

Increment memory and skip next instruction if memory is zero

Example: izsn

Result: MEM

MEM;

MEM + 1, skip next instruction if MEM= 0

←

Affected flags: 『Y』Z 『Y』C 『Y』AC 『Y』OV

M

Decrement memory and skip next instruction if memory is zero

Example: dzsn

Result: MEM

Affected flags: 『Y』Z 『Y』C 『Y』AC 『Y』OV

MEM;

←

MEM - 1, skip next instruction if MEM = 0

7.7. System control Instructions

call

label

Function call, address can be full range address space

Example: call

function1;

pc + 1

Result: [sp]

←

pc

sp

←

function1

sp + 2

Affected flags: 『N』Z 『N』C 『N』AC 『N』OV

goto label

Go to specific address which can be full range address space

Example: goto

error;

Result: Go to error and execute program.

Affected flags: 『N』Z 『N』C 『N』AC 『N』OV

Place immediate data to ACC, then return

Example: ret 0x55;

ret

I

Result:

A ← 55h

ret ;

Affected flags: 『N』Z 『N』C 『N』AC 『N』OV

Page 59 of 67

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PMS150C

8 bit IO-Type Controller

ret

Return to program which had function call

Example: ret;

Result: sp ← sp - 2

pc ← [sp]

Affected flags: 『N』Z 『N』C 『N』AC 『N』OV

reti

Return to program that is interrupt service routine. After this command is executed, global

interrupt is enabled automatically.

Example: reti;

Affected flags: 『N』Z 『N』C 『N』AC 『N』OV

nop

No operation

Example: nop;

Result: nothing changed

Affected flags: 『N』Z 『N』C 『N』AC 『N』OV

pcadd

a

Next program counter is current program counter plus ACC.

Example: pcadd a;

Result: pc ← pc + a

Affected flags: 『N』Z 『N』C 『N』AC 『N』OV

Application Example:

------------------------------------------------------------------------------------------------------------------------

…

mov

pcadd

goto

…

a, 0x02 ;

a ;

// PC <- PC+2

// jump here

err1 ;

correct ;

err2 ;

err3 ;

correct:

…

// jump here

------------------------------------------------------------------------------------------------------------------------

Enable global interrupt enable

engint

Example: engint;

Result: Interrupt request can be sent to FPP0

Affected flags: 『N』Z 『N』C 『N』AC 『N』OV

Disable global interrupt enable

disgint

stopsys

stopexe

Example: disgint ;

Result: Interrupt request is blocked from FPP0

Affected flags: 『N』Z 『N』C 『N』AC 『N』OV

System halt.

Example: stopsys;

Result: Stop the system clocks and halt the system

Affected flags: 『N』Z 『N』C 『N』AC 『N』OV

CPU halt. The oscillator module is still active to output clock, however, system clock is disabled

to save power.

Example: stopexe;

Result: Stop the system clocks and keep oscillator modules active.

Affected flags: 『N』Z 『N』C 『N』AC 『N』OV

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PMS150C

8 bit IO-Type Controller

reset

Reset the whole chip, its operation will be same as hardware reset.

Example: reset;

Result: Reset the whole chip.

Affected flags: 『N』Z 『N』C 『N』AC 『N』OV

Reset Watchdog timer.

wdreset

Example: wdreset ;

Result: Reset Watchdog timer.

Affected flags: 『N』Z 『N』C 『N』AC 『N』OV

7.8. Summary of Instructions Execution Cycle

2T

goto, call, pcadd, ret, reti, idxm

ceqsn, cneqsn, t0sn, t1sn, dzsn, izsn

Others

1T/2T

1T

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PMS150C

8 bit IO-Type Controller

7.9. Summary of affected flags by Instructions

Instruction

mov a, I

Z

-

C

-

AC OV Instruction

Z

-

C

-

AC OV Instruction

Z

Y

-

C

-

AC OV

-

mov M, a

mov IO, a

idxm a, index

pushaf

-

mov a, M

ldt16 word

idxm index, a

popaf

-

mov a, IO

stt16 word

Y

-

xch

M

-

Y

-

Y

-

Y

-

Y

-

add a, I

Y

-

Y

-

Y

-

Y

-

add a, M

addc M, a

sub a, I

Y

-

Y

-

Y

-

Y

-

add M, a

addc a, M

addc

a

addc

M

sub a, M

sub M, a

subc a, M

subc M, a

subc

dec

src

a

subc

clear

M

inc

sr a

src

sl

M

a

sr

M

-

Y

-

sl

a

-

slc

a

-

M

-

slc

and

M

-

swap

and

a

-

and

a, I

Y

-

a, M

Y

-

M, a

Y

-

or a, I

-

or a, M

-

or M, a

-

xor

neg

a, I

-

xor

not

neg

IO, a

-

xor

not

a, M

-

M, a

a

-

a

Y

-

M

-

M

-

set0 IO.n

set1 M.n

t0sn IO.n

t1sn M.n

-

set1 IO.n

ceqsn a, I

t1sn IO.n

-

set0 M.n

ceqsn a, M

t0sn M.n

-

Y

-

Y

-

Y

-

Y

-

Y

-

Y

-

Y

-

Y

-

izsn

dzsn

ret

a

Y

-

Y

-

Y

-

Y

-

dzsn

call

a

Y

-

Y

-

Y

-

Y

-

izsn

M

Y

-

Y

-

Y

-

Y

-

M

label

goto label

reti

I

ret

-

nop

-

pcadd

a

-

engint

-

disgint

reset

-

stopsys

wdreset

-

stopexe

-

Page 62 of 67

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PMS150C

8 bit IO-Type Controller

8. Code Options

Option

Selection

Enable

Disable

4.0V

Description

Security Enable

Security

Security Disable

Select LVR = 4.0V

3.5V

Select LVR = 3.5V

3.0V

Select LVR = 3.0V

2.75V

2.5V

Select LVR = 2.75V

LVR

Select LVR = 2.5V

2.2V

Select LVR = 2.2V

2.0V

Select LVR = 2.0V

1.8V

Select LVR = 1.8V

Slow

Please refer to t_WUPand t_SBPin Section 4.1

IO Low driving and sinking current

IO Normal driving and sinking current

Boot-up_Time

Drive

Fast

Low

Normal

Page 63 of 67

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PMS150C

8 bit IO-Type Controller

9. Special Notes

This chapter is to remind user who use PMS150C series IC in order to avoid frequent errors upon operation.

9.1. Warning

User must read all application notes of the IC by detail before using it. Please download the relative

application notes from the following link:

http://www.padauk.com.tw/technical-application.php

9.2. Using IC

9.2.1. IO pin usage and setting

(1) IO pin as digital input

 When IO is set as digital input, the level of Vih and Vil would changes with the voltage and temperature.

Please follow the minimum value of Vih and the maximum value of Vil.

 The value of internal pull high resistor would also changes with the voltage, temperature and pin

voltage. It is not the fixed value.

(2) If IO pin is set to be digital input and enable wake-up function

 Configure IO pin as input

 Set corresponding bit to “1” in PADIER

 For those IO pins of PA that are not used, PADIER[1:2] should be set low in order to prevent them from

leakage.

(3) PA5 is set to be output pin

 PA5 can be set to be Open-Drain output pin only, output high requires adding pull-up resistor.

(4) PA5 is set to be PRST# input pin

 Configure PA5 as input

 Set CLKMD.0=1 to enable PA5 as PRST# input pin

(5) PA5 is set to be input pin and to connect with a push button or a switch by a long wire

 Needs to put a >10Ω resistor in between PA5 and the long wire

 Avoid using PA5 as input in such application.

9.2.2. Interrupt

(1) When using the interrupt function, the procedure should be:

Step1: Set INTEN register, enable the interrupt control bit

Step2: Clear INTRQ register

Step3: In the main program, using ENGINT to enable CPU interrupt function

Step4: Wait for interrupt. When interrupt occurs, enter to Interrupt Service Routine

Step5: After the Interrupt Service Routine being executed, return to the main program

* Use DISGINT in the main program to disable all interrupts

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PMS150C

8 bit IO-Type Controller

* When interrupt service routine starts, use PUSHAF instruction to save ALU and FLAG register.

POPAF instruction is to restore ALU and FLAG register before RETI as below:

void Interrupt (void)

// Once the interrupt occurs, jump to interrupt service routine

{

// enter DISGINT status automatically, no more interrupt is accepted

PUSHAF;

…

POPAF;

}

// RETI will be added automatically. After RETI being executed, ENGINT status will be restored.

(2) INTEN and INTRQ have no initial values. Please set required value before enabling interrupt function.

9.2.3. System clock switching

System clock can be switched by CLKMD register. Please notice that, NEVER switch the system clock and

turn off the original clock source at the same time. For example: When switching from clock A to clock B,

please switch to clock B first; and after that turn off the clock A oscillator through CLKMD.



Example : Switch system clock from ILRC to IHRC/2

CLKMD

=

0x36;

0;

// switch to IHRC, ILRC can not be disabled here

CLKMD.2 =

// ILRC can be disabled at this time



ERROR: Switch ILRC to IHRC and turn off ILRC simultaneously

CLKMD 0x50; // MCU will hang

=

9.2.4. Power down mode, wakeup and watchdog

Watchdog will be inactive once ILRC is disabled.

9.2.5. TIMER time out

When select T16M counter BIT8 as 1 to generate interrupt, the first interrupt will occur when the counter

reaches to 0x100 ( BIT8 from 0 to 1) and the second interrupt will occur when the counter reaches 0x300 (BIT8

from 0 to 1). Therefore, selecting BIT8 as 1 to generate interrupt means that the interrupt occurs every 512

counts. Please notice that if T16M counter is restarted, the next interrupt will occur once BIT8 turns from 0 to 1.

9.2.6. IHRC

(1) The IHRC frequency calibration is performed when IC is programmed by the writer.

(2) Because the characteristic of the Epoxy Molding Compound (EMC) would some degrees affects the IHRC

frequency (either for package or COB), if the calibration is done before molding process, the actual IHRC

frequency after molding may be deviated or becomes out of spec. Normally , the frequency is getting

slower a bit.

(3) It usually happens in COB package or Quick Turnover Programming (QTP). And PADAUK would not take

any responsibility for this situation.

(4) Users can make some compensatory adjustments according to their own experiences. For example, users

can set IHRC frequency to be 0.5% ~ 1% higher and aim to get better re-targeting after molding.

Page 65 of 67

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PMS150C

8 bit IO-Type Controller

9.2.7. LVR

(1) V_DDmust reach or above 2.0V for successful power-on process; otherwise IC will be inactive.

(2) The setting of LVR (1.8V ~ 4.0V) will be valid just after successful power-on process.

(3) User can set MISC.2 as “1” to disable LVR. However, V_DDmust be kept as exceeding the lowest working

voltage of chip; Otherwise IC may work abnormally.

9.2.8. Instructions

(1) There are 79 instructions are provided by PMS150C.

(2) Only single FPPA is built inside the PMS150C, the executing cycles for different instructions are shown as

below:

Instruction

goto, call, pcadd, ret, reti

ceqsn, cneqsn, t0sn, t1sn,

dzsn, izsn

Condition

CPU

2T

Condition is fulfilled

2T

Condition is not fulfilled

1T

idxm

2T

1T

Others

9.2.9. RAM definition

(1) Bit defined: Only addressed at 0x00 ~ 0x0F

(2) WORD defined : Only addressed at 0x00 ~ 0x1E

9.2.10. Program writing

There are 6 pins for using the writer to program: PA3, PA4, PA5, PA6, VDD and GND.

Please use PDK3S-P-002 for program real chip and just use the CN38 jumper (at the back for the writer) with

putting the PMS150-S08/DIP8 IC downward three spaces on the Textool . Other packages could be

programmed by connecting the signals correspondingly. All the signals of the left side of the jumpers are the

same and as the descriptions at the left bottom corner. They are VDD, PA0(not used), PA3, PA4, PA5, PA6,

PA7(not used), and GND).

If user use PDK5S-P-003 or above to program, please follow the instructions for connecting jumpers

Page 66 of 67

PDK-DS-PMS150C-EN-V004 – Jan. 24, 2018

PMS150C

8 bit IO-Type Controller

9.3. Using ICE

Please use 5S-I-S0xx ICE to emulate most of PMS150C function except as the list below:

(1) 5S-I-S0xx doesn’t support SYSCLK=ILRC/16

(2) 5S-I-S0xx doesn’t support PA6 and PA7 as the CIN2- and CIN3- of the comparator.

(3) 5S-I-S0xx doesn’t support TM2PWM output of PA4.

(4) 5S-I-S0xx doesn’t support the INTEGS the Bit[7:6] dynamically switched.

(5) When GPCS[7]=1, the output of PA0 will affect the High function of PA3.

(6) Fast Wakeup time is different from PDK5S-I-S0xx: 128 SysClk, PMS150C: 32 ILRC

(7) Watch dog time out period is different from PDK5S-I-S0xx:

WDT period

PMS150C

PDK5S-I-S0xx

2048* T_ILRC

misc[1:0]=00

8K* T_ILRC

4096* T_ILRC

misc[1:0]=01

misc[1:0]=10

misc[1:0]=11

16K* T_ILRC

64K* T_ILRC

256K* T_ILRC

16384* T_ILRC

256* T_ILRC

Page 67 of 67

PDK-DS-PMS150C-EN-V004 – Jan. 24, 2018


型号：	PMS150C
厂家：	PADAUK Technology
描述：	8bit OTP Type IO Controller
文件：	总67页 (文件大小：1845K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

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