MCP2155_13 datasheet(4/52 Pages) MICROCHIP

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MCP2155

DS21690B-page 4

Preliminary

 2001-2013 Microchip Technology Inc.

1.1

Applications

The MCP2155 IrDA standard protocol stack controller

supporting the IrDA standard for IrCOMM 9-wire

“cooked” service class which enables embedded sys-

tem designers the easiest way to implement IrDA stan-

dard wireless connectivity. Figure 1-1 shows a typical

application block diagram. Table 1-2 shows the pin def-

initions.

TABLE 1-1:

OVERVIEW OF FEATURES

Infrared communication is a wireless two-way data

connection using infrared light generated by low-cost

transceiver signaling technology. This provides reliable

communication between two devices.

Infrared technology offers:

• Universal standard for connecting portable com-

puting devices

• Easy, effortless implementation

• Economical alternative to other connectivity solu-

tions

• Reliable, high speed connection

• Safe to use in any environment; can even be used

during air travel

• Eliminates the hassle of cables

• Allows PC’s and other elctronic device’s (such as

PDA’s, cell phones, ....) to communicate with each

other

• Enhances mobility by allowing users to easily

connect

The MCP2155 allows the easy addition of IrDA stan-

dard wireless connectivity to any embedded applica-

tion that uses serial data. Figure 1-1 shows typical

implementation of the MCP2155 in an embedded sys-

tem.

The IrDA protocols for printer support are not included

in the IrCOMM 9-wire “cooked” service class.

FIGURE 1-1:

SYSTEM BLOCK DIAGRAM

Features

MCP2155

Serial Communications:

UART, IR

Baud Rate Selection:

Hardware

Low Power Mode:

Yes

Resets (and Delays):

RESET, POR

(PWRT and OST)

Packages:

18-pin DIP, SOIC,

20-pin SSOP

Encode

Decode

TXIR

RXIR

MCP2155

Microcontroller

Optical

TXD

RXD

Power Down

logic

Baud Rate

Generator

BAUD1

BAUD0

RTS

UART

Control

CTS

DSR

DTR

Transceiver

21690B.book Page 4 Thursday, January 10, 2013 1:06 PM

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