SPEAR300 datasheet(18/83 Pages) STMICROELECTRONICS

18 / 83 page

Architecture overview

SPEAr300

18/83

Doc ID 16324 Rev 2

Main features:

●

Supports IrDA serial infrared physical layer specification (IrPHY), version 1.3

●

Supports IrDA link access protocol (IrLAP), version 1.1

●

Serial infrared (SIR), with rates 9.6 Kbps, 19.2 Kbps, 38.4 Kbps, 57.6 Kbps and

●

115.2 Kbps

●

Medium infrared (MIR), with rates 576 Kbps and 1.152 Mbps

●

Fast infrared (FIR), with rate 4 Mbps.

●

Transceiver interface compliant with all IrDA transceivers with configurable TX and RX

signal polarity.

●

Half-duplex infrared frame transmission and reception.

●

16-bit CRC algorithm for SIR and MIR, and 32-bit CRC algorithm for FIR.

2.14

Synchronous serial port (SSP)

SPEAr300 provides one synchronous serial port (SSP) block that offers a master or slave

interface for synchronous serial communication with slave or master peripherals

Main features:

●

Maximum speed of 41.5 Mbps

●

Master and slave mode capability

●

Programmable clock bit rate and prescale

●

Separate transmit and receive first-in, first-out memory buffers, 16 bits wide, 8 locations

deep

●

Programmable choice of interface operation:

–

SPI (Motorola)

–

Microwire (National Semiconductor)

–

TI synchronous serial

●

Programmable data frame size from 4 to 16-bit.

●

Independent masking of transmit FIFO, receive FIFO, and receive overrun interrupts

●

DMA interface

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