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:

Supported ST10 Microcontrollers by Universal Debug Engine

  • STMicroelectronics® C166 ST10R163, ST10F163, ST10R165, ST10R167, ST10F167, ST10F168, ST10F169, ST10R172
  • STMicroelectronics® C166 ST10F251, ST10F252, ST10F269, ST10R271, ST10R272, ST10R273, ST10F275, ST10F276, ST10F280, ST10F282, 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 fCPU /8
  • 4-Channel PWM Unit
  • Two Multifunctional General Purpose Timer Units GPT1: three 16-bit timers/ counters, maximum resolution fCPU /8 GPT2: two 16-bit timers/counters, maximum resolution fCPU /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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