ST92186B Datasheet PDF ( Pinout )

ST92186B Datasheet PDF - ST Microelectronics

Part Number	*ST92186B*
Description	8/16-BIT MCU
Manufacturers	ST Microelectronics
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ST92186B

8/16-BIT MCU FOR TV APPLICATIONS

WITH UP TO 32K ROM AND ENHANCED ON-SCREEN-DISPLAY

s Register file based 8/16 bit Core Architecture

with RUN, WFI, and HALT modes

www.DataSheet4Us.co-m10 to 70°C Operating Temperature Range

s 24 MHz Operation @5V+-10%

s Minimum instruction cycle time: 250ns at 16

MHz internal clock, 165ns at 24 MHz internal

clock

s 24 or 32 Kbytes ROM

s 640 bytes of on-chip static RAM

s 256 bytes of Register file

s 256 bytes of display RAM (OSDRAM)

s 32-pin Shrink DIP and 42-pin Shrink DIP

packages

s 26 (SDIP42) or 17 (SDIP32) fully programmable

I/O pins

s Flexible Clock controller for OSD and Core

clocks, running from one single low frequency

external crystal

s Enhanced Display Controller with rows of up to

63 characters per row

– 50/60Hz and 100/120 Hz operation

– 525/625 lines operation, 4/3 or 16/9 format

– Interlaced and progressive scanning

– 18x26 or 9x13 character matrix

– 256 (18x26) characters, 1024 (9x13) charac-

ters definable in ROM by user

– 512 possible colors, in 4x16-entry palettes

– 2 x 16-entry palettes for Foreground, and 2 x

16-entry palettes for Background

– 8 levels of translucency on Fast Blanking

– Serial, Parallel, and Extended Parallel At-

tributes modes

– 7 character sizes in 18x26 mode, 4 in 9x13

– Rounding, Fringe, Scrolling, Flashing, Shad-

owing, Italics, Semi-transparent

s 5-channel (SDIP42) or 3-channel (SDIP32)

Analog-to-Digital converter with 6-bit accuracy

s 16-bit Watchdog timer with 8-bit prescaler

s 14-bit Voltage Synthesis for tuning reference

voltage with 2 outputs (SDIP42) for 2 tuners or 1

output (SDIP32) for 1 tuner

PSDIP32

PSDIP42

s 16-bit standard timer with 8-bit prescaler

s 6 (SDIP42) or 4 (SDIP32) 8-bit programmable

PWM outputs

s NMI and 8 (SDIP42) or 6 (SDIP32) external

interrupts

s Infra-Red signal digital pre-processor

s Rich instruction set and 14 addressing modes

s Versatile Development Tools, including C-

Compiler, Assembler, Linker

s Source Level Debugger, Emulator and Real-

Time Operating Systems available from third-

parties

s Windows Based OSD Font and Screen Editor

s EPROM and OTP devices available

(ST92E196A9 and ST92T196A9)

DEVICE SUMMARY

Device

Program Memory Package

ST92186B3

ST92186B4

24K SDIP32/SDIP42

32K SDIP32/SDIP42

September 2003

1/148

1 GENERAL DESCRIPTION

ST92186B - GENERAL DESCRIPTION

1.1 INTRODUCTION

The ST92186B family brings the enhanced ST9

performance microcontrollers specifically de-

signed for TV applications. Their performance de-

rives from the use of a flexible 256-register pro-

gramming model for ultra-fast context switching

and real-time event response. The intelligent on-

www.DataSheet4Uc.choimp peripherals offload the ST9 core from I/O and

data management processing tasks allowing criti-

cal application tasks to get the maximum use of

core resources. The ST9 MCU devices support

low power consumption and low voltage operation

for power-efficient and low-cost embedded sys-

tems.

1.1.1 Core Architecture

The nucleus of the ST92186B is the enhanced

ST9 Core that includes the Central Processing

Unit (CPU), the register file and the interrupt con-

troller.

Three independent buses are controlled by the

Core: a 16-bit memory bus, an 8-bit register ad-

dressing bus and a 6-bit interrupt bus which con-

nects the interrupt controller in the on-chip periph-

erals with the core.

This multiple bus architecture makes the ST9 fam-

ily devices highly efficient for accessing on and

off-chip memory and fast exchange of data with

the on-chip peripherals.

The general-purpose registers can be used as ac-

cumulators, index registers, or address pointers.

Adjacent register pairs make up 16-bit registers for

addressing or 16-bit processing. Although the ST9

has an 8-bit ALU, the chip handles 16-bit opera-

tions, including arithmetic, loads/stores, and mem-

ory/register and memory/memory exchanges.

Many opcodes specify byte or word operations,

the hardware automatically handles 16-bit opera-

tions and accesses.

For interrupts or subroutine calls, the CPU uses a

system stack in conjunction with the stack pointer

(SP). A separate user stack has its own SP. The

separate stacks, without size limitations, can be in

on-chip RAM (or in Register File) or off-chip mem-

ory.

1.1.2 Instruction Set

The ST9 instruction set consists of 94 instruction

types, including instructions for bit handling, byte

(8-bit) and word (16-bit) data, as well as BCD and

Boolean formats. Instructions have been added to

facilitate large program and data handling through

the MMU, as well as to improve the performance

and code density of C Function calls. 14 address-

ing modes are available, including powerful indi-

rect addressing capabilities.

The ST9’s bit-manipulation instructions are set,

clear, complement, test and set, load, and various

logic instructions (AND, OR, and XOR). Math func-

tions include add, subtract, increment, decrement,

decimal adjust, multiply, and divide.

1.1.3 Operating Modes

To optimize performance versus the power con-

sumption of the device, ST9 devices now support

a range of operating modes that can be dynami-

cally selected depending on the performance and

functionality requirements of the application at a

given moment.

Run Mode. This is the full speed execution mode

with CPU and peripherals running at the maximum

clock speed delivered by the Phase Locked Loop

(PLL) of the Clock Control Unit (CCU).

Slow Mode. Power consumption can be signifi-

cantly reduced by running the CPU and the periph-

erals at reduced clock speed using the CPU Pres-

caler and CCU Clock Divider.

Wait For Interrupt Mode. The Wait For Interrupt

(WFI) instruction suspends program execution un-

til an interrupt request is acknowledged. During

WFI, the CPU clock is halted while the peripheral

and interrupt controller keep running at a frequen-

cy programmable via the CCU. In this mode, the

power consumption of the device can be reduced

by more than 95% (LP WFI).

Halt Mode. When executing the HALT instruction,

and if the Watchdog is not enabled, the CPU and

its peripherals stop operating and the status of the

machine remains frozen (the clock is also

stopped). A reset is necessary to exit from Halt

mode.

5/148

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ST92186B Datasheet PDF - ST Microelectronics

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