GENERAL DESCRIPTION

INTRODUCTION

The ST92196A family brings the enhanced ST9 register-based architecture to a new range of high performance microcontrollers specifically designed for TV applications. Their performance derives from the use of a flexible 256-register programming model for ultra-fast context switching and real-time event response. The intelligent on chip peripherals offload the ST9 core from I/O and data management processing tasks allowing critical 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 systems.

■ Register file based 8/16 bit Core Architecture with RUN, WFI, and HALT modes

■ -10 to 75°C Operating Temperature Range

■ 24 MHz Operation @5 V ±10

■ Min. instruction cycle time: 165 ns at 24 MHz

■ 32 - 96 Kbytes ROM, 1 - 3 Kbytes static RAM

■ 256 bytes of Register file

■ 384 bytes of display RAM (OSDRAM)

■ 56-pin Shrink DIP and TQFP64 packages

■ 37 fully programmable I/O pins

■ Flexible Clock controller for OSD, Data slicer and Core clocks, running from one single low frequency external crystal

■ 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

– 384 (18x26) characters, or 1536 (9x13) characters 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 tribute modes

– Mouse pointers user-definable in ROM

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

– Rounding, Fringe, Scrolling, Flashing, Shadowing, Italics, Semi-transparent

■ I2C Multi-Master / Slave with 4 channels

■ Serial Communications Interface (SCI)*

■ Serial Peripheral Interface (SPI)

■ 8-channel A/D converter with 6-bit accuracy

■ 16-bit Watchdog timer with 8-bit prescaler

■ 14-bit Voltage Synthesis for tuning reference voltage with 2 outputs for 2 tuners

■ 16-bit standard timer with 8-bit prescaler

■ 16-bit Multi-Function timer*

■ Eight 8-bit programmable PWM outputs

■ NMI and 6 external interrupts

■ 1 or 2 data slicers for Closed Captioning and Extended Data Service data extraction, on 2 independent video sources. Support for FCC V Chip and Gemstar bitstream decoding

■ Infra-Red signal digital pre-processor

■ 2-channel Sync error detection with integrated Sync extractor

■ Rich instruction set and 14 addressing modes

■ Versatile Development Tools, including C Compiler, Assembler, Linker, Source Level Debugger, Emulator and Real-Time Operating Systems from third-parties

■ Windows Based OSD Font and Screen Editor