描述 Description

The MCP2140 is a cost-effective, low pin count (18-pin), easy-to-use device for implementing IrDA standard wireless connectivity. The MCP2140 provides support for the IrDA standard protocol \"stack\", bit encoding/decoding and low cost, discrete IR receiver circuitry.

The serial and IR interface baud rates are fixed at 9600 baud. The serial interface and IR interface baud rates are dependent on the device frequency, but IrDA standard operation requires a device frequency of 7.3728 MHz.

The MCP2140 will specify to the Primary Device the IR baud rate during the Discover phase.

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特性 Features

? Implements the IrDA? standard including:
? IrLAP
? IrLMP
? IAS
? TinyTP
? IrCOMM (9-wire \"cooked\" service class)

? Provides IrDA standard physical signal layer support including:
? Bidirectional communication
? CRC implementation
? Fixed Data communication rate of 9600 baud

? Includes UART to IrDA standard encoder/decoder functionality:
? Easily interfaces with Industry standard UARTs and infrared transceivers

? UART interface for connecting to Data CommunicationsEquipment (DCE) or Data Terminal Equipment (DTE) systems
? Transmit/Receive formats (bit width) supported: 1.63 μs
? Hardware UART Support:????
? 9.6 kbaud baud rate
? 29 Byte Data Buffer Size

? Infrared Supported:
? 9.6 kbaud baud rate
? 64 Byte Data Packet Size
? Operates as Secondary Device
? Automatic Low Power mode
? <60 μA when no IR activity present (PHACT=L)

簡(jiǎn)介

MCP2140屬于集成電路（IC）的控制器。由制造生產(chǎn)的MCP2140控制器該系列產(chǎn)品主要用于在采用不同通信協(xié)議和/或信令方法的端點(diǎn)之間提供信息連接。示例包括將 I2C 總線連接到 UART，將 USB 連接到 I2C、SPI、以太網(wǎng)或 UART、以太網(wǎng) MAC 和 PHY 等的器件。此外，還包括用于通過(guò)為點(diǎn)對(duì)點(diǎn)通信設(shè)計(jì)的接口建立多路連接的器件，例如 USB 集線器控制器。