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ST10 (ST10F273, ST10F276, ST10F269, ST10F296) Microcontrollers - Architectural Overview of the 16-Bit Microcontroller

The architecture of the ST10F269 combines the advantages of both RISC and CISC processors in a very well-balanced way. The sum of the features that are combined result in a high-performance microcontroller, which is the right choice not only for today's applications but also for future engineering challenges. The ST10F269 not only integrates a powerful CPU core and a set of peripheral units into one chip but also connects the units in a very efficient way. One of the four buses used concurrently on the ST10F269 is the XBUS, an internal representation of the external bus interface. This bus provides a standardized method of integrating application-specific peripherals to produce derivatives of the standard ST10F269.

UDE - Universal Debug Engine

UDE - Universal Debug Engine - is a flexible debug platform with Multi-core debugging.

Special feature support:

FLASH Memory programming

Supported ST10 Microcontrollers by Universal Debug Engine

STMicroelectronics ST10R163, ST10F163, ST10R165, ST10R167, ST10F167
STMicroelectronics ST10F168
STMicroelectronics ST10F169
STMicroelectronics ST10R172
STMicroelectronics ST10F251, ST10F252
STMicroelectronics ST10F269
STMicroelectronics ST10R271, ST10R272, ST10R273, ST10R275, ST10F276
STMicroelectronics ST10F280, ST10F282
STMicroelectronics ST10F296

Summary of Basic Features of ST10

The ST10R167, ST10F167, ST10F168, ST10F273, ST10F275, ST10F276, ST10F269 are representatives of the STMicroelectronics family of full featured 16-bit single-chip CMOS microcontrollers. It combines high CPU performance (up to 20 million instructions per second) with high peripheral functionality and modes for power reduction. Several key features contribute to the high performance of the ST10F269 (the indicated timings refer to a CPU clock speed of 40 MHz).

High Performance 16-Bit CPU With Four-Stage Pipeline

50 ns minimum instruction cycle time, with most instructions executed in 1 cycle
16-bit x 16-bit multiplication, 40-bit Accumulator
Multiple high-bandwidth internal data buses
Register based design with multiple variable register banks
Single cycle context switching support
16MBytes linear address space for code and data (von Neumann architecture)
System stack cache support with automatic stack overflow/underflow detection

Control Oriented Instruction Set with High Efficiency

Bit, byte, and word data types
Flexible and efficient addressing modes for high code density
Enhanced boolean bit manipulation with direct addressability of 6 kbits for peripheral control and user defined flags
Hardware traps to identify exception conditions during runtime
HLL support for semaphore operations and efficient data access

Integrated On-Chip Memory

2 kByte internal RAM for variables, register banks, system stack and code
up to 10 kByte on-chip high-speed XRAM for variables, user stack and code (not on all derivatives)
up to 256 kByte on-chip Program FLASH Memory (not for romless devices)

External Bus Interface

Multiplexed or demultiplexed bus configurations
Segmentation capability and chip select signal generation
8-bit or 16-bit data bus
Bus cycle characteristics selectable for five programmable address areas

16-Priority-Level Interrupt System

56 interrupt nodes with separate interrupt vectors
240/400 ns typical/maximum interrupt latency in case of internal program execution
Fast external interrupts

8-Channel Peripheral Event Controller (PEC)

Interrupt driven single cycle data transfer
Transfer count option (standard CPU interrupt after a programmable number of PEC transfers)
Eliminates overhead of saving and restoring system state for interrupt requests

Intelligent On-Chip Peripheral Subsystems

16-Channel 10-bit A/D Converter with programmable conversion time (4.85 us minimum), auto scan modes, channel injection mode
Two 16-Channel Capture/Compare Units with 2 independent time bases each, very flexible PWM unit/event recording unit with different operating modes, includes four 16-bit Timers/counters, maximum resolution f_CPU /8
4-Channel PWM Unit
Two Multifunctional General Purpose Timer Units GPT1: three 16-bit timers/ counters, maximum resolution f_CPU /8 GPT2: two 16-bit timers/counters, maximum resolution f_CPU /4
Asynchronous/Synchronous Serial Channels (USART) with baud rate generator, parity, framing, and overrun error detection
High Speed Synchronous Serial Channel programmable data length and shift direction
Two On-Chip CAN Bus Module, Rev. 2.0B active (30 or 2x15 Message Objects)
Watchdog Timer with programmable time intervals
ASC Bootstrap loader for flexible system initialization
CAN Bootstrap loader for flexible system initialization

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