CAN 2.0B Controller Module
MPC561/MPC563 Reference Manual, Rev. 1.2
16-4
Freescale Semiconductor
16.3.1
Tx/Rx Message Buffer Structure
displays the extended (29-bit) ID message buffer structure.
displays the standard (11-bit) ID message buffer structure.
16.3.1.1
Common Fields for Extended and Standard Format Frames
describes the message buffer fields that are common to both extended and standard identifier
format frames.
MSB
0
7
8
11
L
12
LSB
15
0x0
Time Stamp
Code
Length
CONTROL/STATUS
0x2
ID[28-18]
SRR IDE
ID[17-15]
ID_HIGH
0x4
ID[14-0]
RTR ID_LOW
0x6
Data Byte 0
Data Byte 1
0x8
Data Byte 2
Data Byte 3
0xA
Data Byte 4
Data Byte 5
0xC
Data Byte 6
Data Byte 7
0xE
Reserved
Figure 16-3. Extended ID Message Buffer Structure
MSB
0
7
8
11
L
12
LSB
15
0x0
Time Stamp
Code
Length
CONTROL/STATUS
0x2
ID[28:18]
RTR
0
0
0
0
ID_HIGH
0x4
16-bit Time Stamp
ID_LOW
0x6
Data Byte 0
Data Byte 1
0x8
Data Byte 2
Data Byte 3
0xA
Data Byte 4
Data Byte 5
0xC
Data Byte 6
Data Byte 7
0xE
Reserved
Figure 16-4. Standard ID Message Buffer Structure
Table 16-1. Common Extended/Standard Format Frames
Field
Description
Time Stamp Contains a copy of the high byte of the free running timer, which is captured at the beginning of the
identifier field of the frame on the CAN bus.
Code
Refer to
Summary of Contents for MPC561
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Page 206: ...Central Processing Unit MPC561 MPC563 Reference Manual Rev 1 2 3 62 Freescale Semiconductor...
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Page 1144: ...Internal Memory Map MPC561 MPC563 Reference Manual Rev 1 2 B 34 Freescale Semiconductor...
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