ST9293

The ST9293 is a ROM member of the ST9 family of microcontrollers, completely developed and produced by SGS-THOMSON Microelectronics using a proprietary n-well HCMOS process.

The ROM parts are fully compatible with their EPROM versions, which may be used for the prototyping and pre-production phases of development, and can be configured as standalone microcontrollers with 48K/32K/24K/16 bytes of onchip ROM.

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 supporting 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 pipelining to add to the efficiency of the code execution speed of the extensive instruction set.The powerful I/O capabilities demanded by microcontroller applications are fulfilled by the ST9293 with up to 31/41 I/O lines dedicated to digital Input/Output.

These lines are grouped into up to six I/O Ports and can be configured on a bit basis under software control to provide timing, status signals, timer inputs and outputs, analog inputs, external interrupts and serial or parallel I/O.

Three basic memory spaces of the ST9293 are available to support 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 16-bit Slice Timer with an 8-bit Prescaler and 6 operating modes allows simple use for waveformgeneration and measurement, PWM functions and many other system timing functions.

The human interface of the ST9293 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 character set. The 9x13 character can be modified by 4 different pixel sizes, with character rounding, and formed into words with colour and format attributes. In addition there is a 4 channel Analog to Digital Converter with integral sample and hold, fast 5.5ms conversion time and 6-bit guaranteed resolution.