IRCC2.0

IrCC 2.0 PRELIMINARY Infrared Communications Controller FEATURES Multi-Protocol Serial Communications Controller Full IrDA v1.1 Implementation: 2.4 kbps 115.2 kbps, 0.576 Mbps, 1.152 Mbps and 4 Mbps Consumer Infrared (Remote Control) Interface SHARP Amplitude Shift Keyed Infrared (ASK IR) Interface Direct Rx/Tx Infrared Diode Control (Raw) and General Purpose Data Pins Programmable High-Speed Synchronous Communications Engine (SCE) with a 128Byte FIFO and Programmable Threshold Programmable DMA Refresh Counter High-Speed NS16C550A-Compatible Universal Asynchronous Receiver/ Transmitter Interface (ACE UART) with 16Byte Send and Receive FIFOs ISA Single-Byte and Burst-Mode DMA and Interrupt-Driven Programmed I/O with Zero Wait State and String Move Timing 16 Bit CRC-CCITT and 32 Bit IEEE 802 CRC32 Hardware CRC Generators Automatic Transceiver Control Transmit Pulse Width Limiter SCE Transmit Delay Timer IR Media Busy Indicator GENERAL DESCRIPTION This document describes the Infrared Communications Controller (IrCC 2.0) function, which is common to a number of SMSC products. The IrCC 2.0 consists of two main architectural blocks: the ACE 16C550A UART and a Synchronous Communications Engine (SCE) (Figure 2). It’s own unique register set supports each block. The IrCC 2.0 UART-driven IrDA SIR and SHARP ASK modes are backward compatible with current SMSC Super I/O and Ultra I/O infrared implementations. The IrCC 2.0 SCE supports IrDA v1.1 0.576 Mbps, 1...