STRT71XF datasheet(7/74 Pages) STMICROELECTRONICS

7 / 74 page

STR71xF

Introduction

7/74

Buffered Serial Peripheral Interfaces (BSPI)

Each of the two SPIs allow full duplex, synchronous communications with external devices,

master or slave communication at up to 5.5Mb/s in Master mode and 4 Mb/s in Slave mode.

I2C Interfaces

The two I2C Interfaces provide multi-master and slave functions, support normal and fast

I2C mode (400 kHz) and 7 or 10-bit addressing modes.

One I2C Interface is multiplexed with one SPI, so either 2xSPI+1x I2C or 1xSPI+2x I2C may

be used at a time.

HDLC interface

The High Level Data Link Controller (HDLC) unit supports full duplex operation and NRZ,

NRZI, FM0 or MANCHESTER protocols. It has an internal 8-bit baud rate generator.

A/D Converter

The Analog to Digital Converter, converts in single channel or up to 4 channels in single-

shot or round robin mode. Resolution is 12-bit with a sampling frequency of up to 1 kHz. The

input voltage range is 0-2.5V.

Watchdog

The 16-bit Watchdog Timer protects the application against hardware or software failures

and ensures recovery by generating a reset.

I/O Ports

The 48 I/O ports are programmable as Inputs or Outputs.

External Interrupts

Up to 14 external interrupts are available for application use or to wake-up the application

from STOP mode.

STRT71XF 数据表(PDF) 7 Page - STMicroelectronics