NXP Semiconductors MPC5606S - Page 710

FlexCAN
MPC5606S Microcontroller Reference Manual, Rev. 7
708 Freescale Semiconductor
Figure 18-17. Segments within the bit time
Table 18-21 gives an overview of the CAN compliant segment settings and the related parameter values.
Table 18-20. Time segment syntax
Syntax Description
SYNC_SEG System expects transitions to occur on the bus during this period.
Transmit Point A node in transmit mode transfers a new value to the CAN bus at this point.
Sample Point A node samples the bus at this point. If the three samples per bit option is
selected, then this point marks the position of the third sample.
Table 18-21. CAN standard compliant bit time segment settings
Time Segment 1 Time Segment 2
Resynchronization
Jump Width
5 .. 10 2 1 .. 2
4 .. 11 3 1 .. 3
5 .. 12 4 1 .. 4
6 .. 13 5 1 .. 4
7 .. 14 6 1 .. 4
8 .. 15 7 1 .. 4
9 .. 16 8 1 .. 4
SYNC_SEG
Time Segment 1 Time Segment 2
1 4 ... 16 2 ... 8
8 ... 25 Time Quanta
= 1 Bit Time
NRZ Signal
Sample Point
(single or triple sampling)
(PROP_SEG + PSEG1 + 2) (PSEG2 + 1)
Transmit Point