Motorola MCF5281 사용자 설명서
MOTOROLA
Chapter 25. FlexCAN
25-5
Message Buffers
Figure 25-3. Extended ID Message Buffer Structure
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.
standard identifier format frames.
15–8
7–4
3–0
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
15–8
7–4
3–0
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