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Chapter 16
FCAN Controller
User’s Manual U16702EE3V2UD00
(3)
Synchronizing data bit
•
The receiving node establishes synchronization by a level change on the bus because it does
not have a sync signal.
•
The transmitting node transmits data in synchronization with the bit timing of the transmitting
node.
(a) Hardware synchronization
This synchronization is established when the receiving node detects the start of frame in the inter-
frame space.
•
When a falling edge is detected on the bus, that TQ means the sync segment and the next
segment is the prop segment. In this case, synchronization is established regardless of SJW.
Figure 16-20:
Adjusting Synchronization of Data Bit
Start of frame
Interframe space
CAN bus
Bit timing
Phase
segment 1
Prop
segment
Sync
segment
Phase
segment 2
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