Datasheet

© 2007 Microchip Technology Inc. DS21801E-page 9
MCP2515
FIGURE 2-1: STANDARD DATA FRAME
0 0
0
0
1
1 1 1 1 1 1 1
Start-of-Frame
Data Frame (number of bits = 44 + 8N)
12
Arbitration Field
ID 10
11
ID3
ID0
Identifier
Message Filtering
Stored in Buffers
RTR
IDE
RB0
DLC3
DLC0
6
4
Control Field
Data Length Code
Reserved Bit
8N (0≤N≤8) Data Field
8
8
Stored in Transmit/Receive Buffers
Bit-stuffing
16
CRC Field
15
CRC
7
End-of- Frame
CRC Del
Ack Slot Bit
ACK Del
IFS
1 1
1
1