![NEC V850/SC1 Скачать руководство пользователя страница 644](http://html.mh-extra.com/html/nec/v850-sc1/v850-sc1_user-manual_248178644.webp)
CHAPTER 19 FCAN CONTROLLER (V850/SC3)
User’s Manual U15109EJ3V0UD
642
<3> Control field
The control field sets “N” as the number of data bytes in the data field (N = 0 to 8).
Figure 19-16. Control Field
R
D
r1
(IDE)
r0
RTR
DLC2
DLC3
DLC1
DLC0
Control field
(Data field)
(Arbitration field)
Remark
D: Dominant = 0
R: Recessive = 1
In a standard format frame, the control field’s IDE bit is the same as the r1 bit.
Table 19-19. Data Length Code Settings
Data Length Code
DLC3
DLC2
DLC1
DLC0
Data Byte Count
0
0
0
0
0 bytes
0
0
0
1
1 byte
0
0
1
0
2 bytes
0
0
1
1
3 bytes
0
1
0
0
4 bytes
0
1
0
1
5 bytes
0
1
1
0
6 bytes
0
1
1
1
7 bytes
1
0
0
0
8 bytes
Other than above
8 bytes regardless of the
value of DLC3 to DLC0
Caution
In the remote frame, there is no data field even if the data length code
is not 0000B.