MCP2120 datasheet(45/64 Pages) MICROCHIP

45 / 64 page

 2001 Microchip Technology Inc.

DS51246A-page 41

MCP2120/MCP2150

USER’S GUIDE

Chapter 5. Using a PICDEM™ 1 or PICDEM™ 2 Board

as Host

5.1 Using the PICDEM 1 Board

The PICDEM™ 1 board may be used as the host controller in an IrDA

standard compatible system. PortB can be used to display received

characters, while any of the other ports would be used for the UART and

control signals. A PICmicro® microcontroller may be selected that has a

hardware UART, or the UART functionality may be implemented in software.

Figure 5.1 shows the parts layout (silk-screen) for the PICDEM 1 board.

Figure 5.1: PICDEM 1 Parts Layout

Note 1: U1 is for use with any 40-pin PIC17C4X device.

2: U2 is for use with any 18-pin PIC16C5X, PIC16CXXX device.

3: U3 is for use with any 28-pin PIC16C5X, PIC16CXXX device.

C16

CR1

C15

C13

C11

C14

RN1

RN2

PICDEM-I

CONNECTION

DIRECT

SUPPLY

+5V PWR

PIC16C54/56/58

PIC16C55/57

PIC16C71/84

PIC17C42

DEMO BOARD

+9V IN

POT

CH0

RTCC

MCLR

RA1

PORT B

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