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<3> Control field
The control field sets "N" as the number of data bytes in the data field (N = 0 to 8).
r1 and r0 are fixed as dominant (D). The data length code bits (DLC3 to DLC0) set the byte count.
Remark
DLC3 to DLC0: Bits 3 to 0 in CAN message data length registers 00 to 31 (M_DLC00 to
M_DLC31) (see 11.10 (2))
(Arbitration field)
R
D
RTR
In standard format mode, the arbitration field's IDE bit is the same bit as the r1 bit.
DLC3
0
0
0
0
0
0
0
0
1
Caution In the remote frame, there is no data field even if the data length code is
CHAPTER 11 FCAN CONTROLLER
Figure 11-13. Control Field
Control field
r1
r0
DLC3
DLC2
(IDE)
Table 11-9. Data Length Code Settings
Data Length Code
DLC2
DLC1
DLC0
0
0
0
0
0
1
0
1
0
0
1
1
1
0
0
1
0
1
1
1
0
1
1
1
0
0
0
Other than above
not 0000B.
User's Manual U14492EJ5V0UD
(Data field)
DLC1
DLC0
Data Byte Count
0 bytes
1 byte
2 bytes
3 bytes
4 bytes
5 bytes
6 bytes
7 bytes
8 bytes
8 bytes regardless of the
values of DLC3 to DLC0
529
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