MCP2120 datasheet(10/64 Pages) MICROCHIP

10 / 64 page

MCP2120/MCP2150 USER’S GUIDE

DS51246A-page 6

 2001 Microchip Technology Inc.

2.3 Developer Board Features

2.3.1.

MCP2120 Developer’s Board

The MCP2120 Developer’s Board, as shown in Figure 2.1, has the following

hardware features:

1. On-board +5V regulator for direct input from 9V, 750 mA AC/DC wall

adapter or 9V battery.

2. Hooks for a +5V, 750 mA regulated DC supply.

3. DB-9 connector and associated hardware for direct connection to

MCP2120 UART (DB-9 interface requires RS-232 signal levels).

4. Four-pin header connection to UART interface (Header requires TTL

level signals).

5. Two jumpers to select source of UART signals. Either DB-9 connector or

the four-pin header.

6. Three jumpers to select desired baud rate.

7. Green power-on indicator LED.

8. Two IR Transceiver options (two jumpers select transceiver).

9. Jumper to disable MCP2120 device operation.

10. Hardware and Software Baud selection.

11. Jumper for Software Baud control when using RS-232C interface.

12. Socketed crystal.

Note: A schematic of the MCP2120 Developer’s Board is shown in

Figure A.5

MCP2120 Datasheet(PDF) 10 Page - Microchip Technology