SPEAR600 datasheet(19/97 Pages) STMICROELECTRONICS

19 / 97 page

SPEAr600

Architecture overview

Doc ID 16259 Rev 3

19/97

2.16

Fast IrDA controller

The SPEAr600 has a Fast IrDA controller.

Main features:

●

Supports the following standards:

–

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

–

IrDA link access protocol (IrLAP), version 1.1

●

Supports the following infrared modes and baud rates:

–

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 to 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

●

Generates preamble, start and stop flags

●

Uses the RZI (Return-to-Zero Inverted) modulation/demodulation scheme for SIR and

MIR, and the 4PPM (4 Pulse Position Modulation) modulation/demodulation scheme

for FIR

●

Provides synchronization by means of a DPLL in FIR mode

●

Easily adaptable to different bus systems with 32-bit register interface and FIFO with

configurable FIFO size

2.17

I2S audio block

SPEAr600 contains three I2S interfaces providing the following features.

Main features:

●

Conversion of AHB protocol to I2S protocol and vice versa

●

Supports 2.0, 2.1 and 3.1 audio outputs (I2S master mode)

●

32 (16L + 16R) and 64 bit (32L + 32R) of raw PCM data length supported

●

MIC/Line-In (2.0) recording (I2S master/slave mode)

●

Stereo headphone out

2.18

System controller

The System Controller provides an interface for controlling the operation of the overall

system.

Main features:

●

Power saving system mode control

●

Crystal oscillator and PLL control

●

Configuration of system response to interrupts

SPEAR600 Datasheet(PDF) 19 Page - STMicroelectronics

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