Datasheet

V850ES/JG3-H, V850ES/JH3-H CHAPTER 20 CAN CONTROLLER
R01UH0042EJ0500 Rev.5.00 Page 898 of 1513
Aug 12, 2011
<2> Arbitration field
The arbitration field is used to set the priority, data frame/remote frame, and frame format.
Figure 20-6. Arbitration Field (in Standard Format Mode)
R
D
IDE
(r1)
r0RTRIdentifier
Arbitration field (Control field)
(11 bits)
ID28
. . . . . . . . . . . . . . . . . . . .
ID18
(1 bit) (1 bit)
Cautions 1. ID28 to ID18 are identifiers.
2. An identifier is transmitted MSB first.
Remark D: Dominant = 0
R: Recessive = 1
Figure 20-7. Arbitration Field (in Extended Format Mode)
R
D
r1 r0RTRIDESRRIdentifier Identifier
Arbitration field (Control field)
(11 bits) (18 bits)
ID28 · · · · · · · · · · · · · · ID18 ID17 · · · · · · · · · · · · · · · · · ID0
(1 bit) (1 bit) (1 bit)
Cautions 1. ID28 to ID18 are identifiers.
2. An identifier is transmitted MSB first.
Remark D: Dominant = 0
R: Recessive = 1
Table 20-3. RTR Frame Settings
Frame Type RTR Bit
Data frame 0 (D)
Remote frame 1 (R)
Table 20-4. Frame Format Setting (IDE Bit) and Number of Identifier (ID) Bits
Frame Format SRR Bit IDE Bit Number of Bits
Standard format mode None 0 (D) 11 bits
Extended format mode 1 (R) 1 (R) 29 bits