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22.3.2.14 Transmit Buffer Descriptor Field
Table 22-28 and Table 22-29 show the bit layout of the Descriptor Field of the Transmit
Buffer. Table 22-28 shows the SFF message format, while Table 22-29 shows the EFF
message format.
CAN OFFSET
0X40
0X44
0X48
NOTES:
1. Don't care, but '0' is recommended for compatibility with the Receive Buffer
in case the Self-Reception or the Self Test option is used.
2. Don't care, but matching the RTR bit in the Receive Buffer is recommended
in case the Self-Reception or the Self Test option is used.
CAN OFFSET
0x40
0x44
0x48
0x4C
0x50
NOTES:
1. Don't care, but '0' is recommended for compatibility with the Receive Buffer
in case the Self-Reception or the Self Test option is used.
2. Don't care, but matching the RTR bit in the Receive Buffer is recommended
in case the Self-Reception or the Self Test option is used.
22-24
LH75400/01/10/11 (Preliminary) User's Guide
Table 22-28. Transmit Frame (SFF)
BIT 7
BIT 6
BIT 5
1
FF
RTR
x
ID.28
ID.27
ID.26
ID.20
ID.19
ID.18
Table 22-29. Transmit Frame (EFF)
BIT 7
BIT 6
BIT 5
1
FF
RTR
x
ID.28
ID.27
ID.26
ID.20
ID.19
ID.18
ID.12
ID.11
ID.10
ID.4
ID.3
ID.2
6/17/03
BIT 4
BIT 3
BIT 2
1
x
DLC.3
DLC.2
ID.25
ID.24
ID.23
2
1
1
x
x
x
BIT 4
BIT 3
BIT 2
1
x
DLC.3
DLC.2
ID.25
ID.24
ID.23
ID.17
ID.16
ID.15
ID.9
ID.8
ID.7
2
ID.1
ID.0
x
BIT 1
BIT 0
DLC.1
DLC.0
ID.22
ID.21
1
1
x
x
BIT 1
BIT 0
DLC.1
DLC.0
ID.22
ID.21
ID.14
ID.13
ID.6
ID.5
1
1
x
x
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