Extended Id Message Buffer Structure; Standard Id Message Buffer Structure - Motorola ColdFire MCF5281 User Manual

15–8
0x0 TIME STAMP
0x2
0x4
0x6 DATA BYTE 0
0x8 DATA BYTE 2
0xA DATA BYTE 4
0xC DATA BYTE 6
0xE
Figure 25-3. Extended ID Message Buffer Structure
15–8
0x0 TIME STAMP
0x2
0x4
0x6 DATA BYTE 0
0x8 DATA BYTE 2
0xA DATA BYTE 4
0xC DATA BYTE 6
0xE
Figure 25-4. Standard ID Message Buffer Structure
25.3.1.1 Common Fields for Extended and Standard Format Frames
Table 25-2 describes the message buffer fields that are common to both extended and
standard identifier format frames.
MOTOROLA
ID[28:18]
ID[14-0]
Reserved
ID[28:18]
16-BIT TIME STAMP
Reserved
Chapter 25. FlexCAN
7–4 3–0
CODE LENGTH
SRR IDE ID[17-15]
DATA BYTE 1
DATA BYTE 3
DATA BYTE 5
DATA BYTE 7
7–4 3–0
CODE LENGTH
RTR 0 0
DATA BYTE 1
DATA BYTE 3
DATA BYTE 5
DATA BYTE 7
Message Buffers
CONTROL/STATUS
ID_HIGH
RTR ID_LOW
CONTROL/STATUS
0 0 ID_HIGH
ID_LOW
25-5