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Chapter 34 CAN Controller
4.CAN Application
Figure 4-5 Bit Timing
Table 4-1 Parameters of the CAN Bit Time
(Note) This table describes the minimum programmable ranges required by the CAN protocol.
Parameter Range Remark
BRP [1..32] defines the legth of the time quantum tq
Sync_Seg 1 tq fixed length, synchronisation of us into system clock
Prop_Seg [1..8] tq compensates for the physical delay times
Phase_Seg1 [1..8] tq may be lengthened temporarily by synchronisation
Phase_Seg2 [1..8] tq may be shortened temporarily by synchronisation
SJW [1..4] tq may not be longer than either Phase Buffer Segment