ST10R272L 16位微控制器

品牌:ST10R272L 型号:ＳＴ批号:０９＋封装:TQFP 100 14x14x1.4 1

ST10R272L 16位微控制器

16-bit low voltage ROMless MCU with MAC

ST10R272L 概述

ST10R272L architecture combines the advantages of both RISC and CISC processors with an advanced peripheral subsystem. The following block diagram overviews the different onchip components and the internal bus structure.

The main core of the CPU contains a 4-stage instruction pipeline, a MAC multiplyaccumulation unit, a separate multiply and divide unit, a bit-mask generator and a barrel shifter. Most instructions can be executed in one machine cycle requiring 40ns at 50MHz CPU clock.

The CPU includes an actual register context consisting of 16 wordwide GPRs physically located in the on-chip RAM area. A Context Pointer (CP) register determines the base address of the active register bank to be accessed by the CPU. The number of register banks is only restricted by the available internal RAM space. For easy parameter p*ing, one register bank may overlap others.

A system stack of up to 1024 bytes is provided as a storage for temporary data. The system stack is allocated in the on-chip RAM area, and it is accessed by the CPU via the stack pointer (SP) register. Two separate SFRs, STKOV and STKUN, are compared against the stack pointer value during each stack access to detect stack overflow or underflow.

ST10R272L 特性:

High Performance 16-bit CPU
CPU Frequency: 0 to 50 MHz
40ns instruction cycle time at 50-MHz CPU
clock
Multiply-Accumulate unit (MAC)
4-stage pipeline
Register-based design with multiple
variable register banks
Enhanced boolean bit manipulation
facilities
Additional instructions to support HLL and
operating systems
Single-cycle context switching support
1024 bytes on-Chip special function
register area
Memory Organisation
1KByte on-chip RAM
Up to 16 *ytes linear address space for
code and data (1 *yte with SSP used)
External Memory Interface
Programmable external bus characteristics
for different address ranges
8-bit or 16-bit external data bus
Multiplexed or demultiplexed external
address/data buses
Five programmable chip-select signals
Hold and hold-acknowledge bus arbitration
support
One Channel PWM Unit
Fail Safe Protection
Programmable watchdog timer
Oscillator Watchdog
Interrupt
8-channel interrupt-driven single-cycle data
transfer facilities via peripheral event
controller (PEC)
16-priority-level interrupt system with 17
sources, sample-rate down to 40 ns
Timers
Two multi-functional general purpose timer
units with 5 timers
Clock Generation via on-chip PLL, or via
direct or prescaled clock input
Serial Channels
Synchronous/asynchronous
High-speed-synchronous serial port SSP
Up to 77 general purpose I/O lines
No bootstrap loader
Electrical Characteristics
5V Tolerant I/Os
5V Fail-Safe Inputs (Port 5)
Power: 3.3 Volt +/-0.3V
Idle and power down modes
Support
C-compilers, macro-*embler packages,
emulators, evaluation boards, HLLde*s,
simulators, logic *yser
dis*emblers, programming boards
Package
100-Pin Thin Quad Flat Pack (TQFP)

ST10R272L 16位微控制器