User manual

MCP250XX User’s Guide
DS51266C-page 34  2004 Microchip Technology Inc.
4.4 PROGRAMMING VIA THE ICSP™ CONNECTOR
There is an ICSP connector on Node A that can be used to program the user defaults
with an external programmer. To insure successful programming, the MCP250XX
Programming Specification (DS20072) must be adhered to.
The JP4 jumper allows the MCP250XX socket to be isolated from board power so the
programmer does not have to drive the board while programming.
FIGURE 4-8: PROGRAMMING VIA THE ICSP™ CONNECTOR
VDD
CLOCK
1
2
3
4
DATA
14
13
12
11
10
5
6
7
8
9
V
SS
VPP
ICSP™
MCP250XX
JP4
V
DD
Connector