ST9293 [STMICROELECTRONICS]

48K ROM HCMOS MCUs WITH ON SCREEN DISPLAY AND A/D CONVERTER; 48K ROM HCMOS微控制器与屏幕显示和A / D转换器


型号：	ST9293
厂家：	ST
描述：	48K ROM HCMOS MCUs WITH ON SCREEN DISPLAY AND A/D CONVERTER 48K ROM HCMOS微控制器与屏幕显示和A / D转换器转换器微控制器
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ST9293

48K ROM HCMOS MCUs WITH

ON SCREEN DISPLAY AND A/D CONVERTER

FUNCTIONAL DESCRIPTION

RUN, WFI and HALT modes

Minimum instruction cycle time: 500ns

(12MHz internal)

16 to 48K bytes of ROM,

256 to 768 bytes of RAM,

224 general purpose registers available as RAM,

accumulators or index registers (Register File)

42-lead Shrink DIP package

Interrupt handler and Serial Peripheral Interface

as standard features

PSDIP42

31 fully programmable I/O pins

34 character x15 rows software programmable

On Screen Display module with colour, italic, un-

derline, flash, transparent and fringe attribute

options

(Ordering Information at the end of the Datasheet)

DEVICE SUMMARY

16 bit Timer with 8 bit Prescaler, able to be used

as a Watchdog Timer

Device

ST9293J7

ST9293J5

ST9293J3

ST9293J1

ROM

48K

32K

24K

16K

RAM

768

640

512

256

PACKAGE

PSDIP42

16-bit programmable Slice Timer with 8-bit pres-

caler

4 channel Analog to Digital Converter, with inte-

gral sample and hold, fast 5.75µs conversion

time, 6-bit guaranteed resolution

Rich Instruction Set and 14 Addressing modes

Division-by-Zero trap generation

Versatile Development tools, including assembler,

linker, C-compiler, archiver, graphic oriented de-

bugger and hardware emulators

Real Time Operating System

Windowed EPROM parts available for prototyp-

ing and pre-production development phases

May 1993

1/4

This is Preliminary Data from SGS-THOMSON. Details are subject to change without notice.

ST9293

1.1GENERAL DESCRIPTION

control to provide timing, status signals, timer in-

puts and outputs, analog inputs, external interrupts

and serial or parallel I/O.

The ST9293 is a ROM member of the ST9 family of

microcontrollers, completely developed and pro-

duced by SGS-THOMSON Microelectronics using

a proprietary n-well HCMOS process.

Three basic memory spaces are available to sup-

port this wide range of configurations: Program

Memory, Data Memory and the Register File,

which includes the control and status registers of

the on-chip peripherals.

The ROM parts are fully compatible with their

EPROM versions, which may be used for the pro-

totyping and pre-production phases of develop-

ment, and can be configured as standalone

microcontrollers with 48K/32K/24K/16 bytes of on-

chip ROM.

The 16-bit Slice Timer with an 8-bit Prescaler and 6

operating modes allows simple use for wavefor-

mgeneration and measurement, PWM functions

and many other system timing functions.

The nucleus of the ST9293 is the advanced Core

which includes the Central Processing Unit (CPU),

the Register File, a 16-bit Timer/Watchdog with 8-

bit Prescaler, a Serial Peripheral Interface support-

ing S-bus, I²C-bus and IM-bus Interface, plus two

8-bit I/O ports. The Core has independent memory

and register buses allowing a high degree of pipe-

lining to add to the efficiency of the code execution

speed of the extensive instruction set.The powerful

I/O capabilities demanded by microcontroller appli-

cations are fulfilled by the ST9293 with up to 31/41

I/O lines dedicated to digital Input/Output.

The human interface is provided by the On Screen

Display module, this can produce up to 8 lines of of

up to 34 characters from a ROM defined 128 char-

acter set. The 9x13 character can be modified by 4

different pixel sizes, with character rounding, and

formed into words with colour and format attrib-

utes.

In addition there is a 4 channel Analog to Digital

Converter with integral sample and hold, fast 5.5µs

conversion time and 6-bit guaranteed resolution.

These lines are grouped into up to six I/O Ports and

can be configured on a bit basis under software

Figure 1-1. ST9293 Block Diagram

ROM RAM

16-Bit TIMER / WATCHDOG + SPI

SLICE

256 Bytes

16 to 48k x 8

ROM

256 to 768

RAM

48K 768

32K 640

24K 512

16K 256

TIMER

CPU

MEMORY BUS ( Address & Data )

I/O PORT 5

( Control Bus )

( Colour )

ON SCREEN

A / D

I/O PORT 2

( SPI )

I/O PORT 4

I/O PORT 0

I/O PORT 3

DISPLAY

CONVERTER

( Analog Inputs )

PLL

VSYNC HSYNC

AV_DD

PLLR

PLLF

VR0B1749

2/4

ST9293

1.2 PIN DESCRIPTION

VSYNC. Vertical Synch. Vertical video synchroni-

sation input to OSD. Positive or negative polarity.

AV_DD. Analog V_DDof PLL. This pin must be tied to

V_DDexternally to the ST9293.

HSYNC. Horizontal Synch. Horizontal video syn-

chronisation input to OSD. Positive or negative po-

larity.

V_DD. Main Power Supply Voltage (5V±10%)

V_SS, V_SS2. Digital Circuit Ground, these pins must

be connected together externally to the ST9293.

PLLF. PLL Filter input. Filter input for the OSD for

PLL feed-back.

P0.0-P0.7, P2.0-P2.7, P3.3-P3.7, P4.5-P4.7,

P5.0-P5.6 I/O Port Lines (Input/Output, TTL or

CMOS compatible). 31 lines grouped into I/O

ports, bit programmable under program control as

general purpose I/O or as Alternate functions (see

next section).

PLLR. PLL Resistor connection pin. For resistor

connection to select the PLL gain adjust.

RESET. Reset (input, active low). The ST9 is ini-

tialised by the Reset signal. With the deactivation

of RESET, program execution begins from the Pro-

gram memory location pointed to by the vector

contained in program memory locations 00h and

01h.

P3.3 and P3.4 are true 12V open drain outputs

when set in output mode.

1.2.1 I/O Port Alternate Functions.

Each pin of the I/O ports of the ST9293 may as-

sume software programmable Alternative Func-

tions as shown in the Pin Configuration Drawings.

Table 1 shows the Functions allocated to each I/O

Port pin.

OSCIN, OSCOUT. Oscillator (input and output).

These pins connect a parallel-resonant crystal

(24MHz maximum), or an external source to the

on-chip clock oscillator and buffer. OSCIN is the in-

put of the oscillator inverter and internal clock gen-

erator; OSCOUT is the output of the oscillator

inverter.

Table 1-1. ST9293 I/O Port Alternate Function Summary

I/O PORT

Assignment

Name

Function

Alternate Function

Port.bit

P0.0

P0.1

P0.2

P0.3

P0.4

P0.5

P0.6

P0.7

P2.0

P2.1

P2.2

9293J

I/O

INT6

External Interrupt 6

INT7

INT0

External Interrupt 7

External Interrupt 0

3/4

ST9293

PIN DESCRIPTION (Continued)

Table 1-2. ST9293 I/O Port Alternate Function Summary

Assignment

I/O PORT

Name

Function

Alternate Function

Port.bit

P2.3

P2.4

P2.5

P2.6

P2.7

P3.3

P3.4

P3.5

P3.6

P3.7

P4.5

P4.6

P4.7

P5.0

P5.1

P5.2

P5.3

P5.4

P5.5

P5.6

9293J

INT3

External Interrupt 3

WDOUT

EXTRG

SDO

T/WD Output

External A/D Trigger

MSPI Serial Data Output

External Interrupt 2

SPI Serial Clock

INT2

SCK

SDO

SPI Serial Data Output

SPI Serial Data Input

(12V Open Drain Output)

Slice Timer Output

(12V Open Drain Output)

Slice Timer Input

SDI

SLOUT

SLIN

INT4

WDIN

AIN4

NMI

Schmitt Triggered Input Only

T/WD Input

A/D Analog Input 4

Non-Maskable Interrupt

A/D Analog Input 5

A/D Analog Input 6

A/D Analog Input 7

AIN5

AIN6

AIN7

I/O

Fast Blanking OSD output

Blue Video Colour OSD output

Green Video Colour OSD output

Red Video Colour OSD output

Information furnished is believed to be accurate and reliable. However, SGS-THOMSON Microelectronics assumes no responsability for the

consequences of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No

license is granted by implication or otherwise under any patent or patent rights of SGS-THOMSON Microelectronics. Specifications mentioned

in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied.

SGS-THOMSON Microelectronics products are not authorized for use as critical components in life support devices or systems without the

express written approval of SGS-THOMSON Microelectronics.

Purchase of I C Components by SGS-THOMSON Microelectronics conveys a license under the Philips I C Patent.

Rights to use these components in an I C system is granted provided that the system conforms to the I C Standard

Specification as defined by Philips.

SGS-THOMSON Microelectronics Group of Companies

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