User manual

Product Overview and Installation
 2004 Microchip Technology Inc. DS51266C-page 7
1.5 MCP2515 COMPONENTS
The MCP2515 consists of four main parts (see Figure 1-4):
1. PC Node
2. Node A
3. Node B
4. Device Programmer
1.5.1 PC Node
The PC Node is the master node for the demonstration program that controls Node B.
This node contains a MCP2515 Stand-Alone CAN Controller that is controlled by the
host PC via a custom parallel port interface.
1.5.2 Node A
Node A is a bare CAN node next to the prototyping area. This node is used for
MCP250XX prototyping and can also be used to program the user defaults via the
ICSP protocol. See Figure 1-2 for pinout description.
FIGURE 1-2: NODE A PINOUT
Note: All three nodes are connected to a common CAN bus that has external
connections via the DB9 connector.
V
DD
CLOCK
1
2
3
4
DATA
14
13
12
11
10
5
6
7
8
9
V
SS
VPP
ICSP™ Header
MCP250XX