upd70f3402 Renesas Electronics Corporation., upd70f3402 Datasheet - Page 536

• Manufacturer Part Number: upd70f3402
• Description: 32-/16-bit Single-chip Microcontroller With Can Interface
• Manufacturer: Renesas Electronics Corporation.

Remarks: 1. Bus idle:
536
Error active
Error passive
R
D
(b) Error passive node
The interframe space consists of an intermission field, a suspend transmission field, and a bus idle
field.
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
Error Status
(Frame)
2. D: Dominant = 0
Suspend transmission: Sequence of 8 recessive-level bits transmitted from the node in
R: Recessive = 1
A node in this status can transmit immediately after a 3-bit intermission.
A node in this status can transmit 8 bits after the intermission.
Figure 16-14: Interframe Space (Error Passive Node)
Intermission
(3 bits)
Table 16-6: Operation in Error Status
Chapter 16 FCAN Controller
User’s Manual U16702EE3V2UD00
State in which the bus is not used by any node.
the error passive status.
Interframe space
Suspend transmission
(8 bits)
Operation
(0 to ∞ bits)
Bus idle
(Frame)