NEC V850ES/F 3-L Series User Manual page 538

Chapter 18
Note
(Frame)
R
D
Figure 18-14
Note
Table 18-6
538
1. Bus idle: State in which the bus is not used by any node.
2. D: Dominant = 0
R: Recessive = 1
– Error passive node
The interframe space consists of an intermission field, a suspend
transmission field, and a bus idle field.
Interframe space
Intermission Suspend transmission
(3 bits)
Interframe space (error passive node)
1. Bus idle:
Suspend transmission:
2. D: Dominant = 0
R: Recessive = 1
Usually, the intermission field is 3 bits. If the transmitting node detects a
dominant level at the third bit of the intermission field, however, it
executes transmission.
• Operation in error status
Operation in error status
Error status Operation
Error active A node in this status can transmit immediately after a 3-bit
intermission.
Error passive A node in this status can transmit 8 bits after the intermission.
User's Manual U18743EE1V2UM00
(0 to ∞ bits)
(8 bits)
State in which the bus is not used by any node.
Sequence of 8 recessive-level bits transmitted
from the node in the error passive status.
CAN Controller (CAN)
(Frame)
Bus idle