Figure 3.6 Flowchart Of Initial Setup Of Can Controller - Toshiba TXZ Series Reference Manual

Initialize CAN after reset
CAN is in configuration mode:
[CANMCR]<CCR> = 1 &
[CANGSR]<CCE> = 1
Set bit timing parameters in
[CANBCR1] & [CANBCR2]
Normal operation
Set [CANMCR]<CCR> to "0"
[CANGSR]<CCE> = 0 ?
CAN is in normal operation mode
and starts power-up sequence
11 consecutive recessive
bits detected?
CAN is bus on and
ready for operation
2018-10-30
No
requested?
Yes
No
Yes
No
Yes

Figure 3.6 Flowchart of Initial Setup of CAN Controller

Switch to configuration mode
from normal operation mode
CAN is in normal operation mode:
[CANMCR]<CCR> = 0 &
[CANGSR]<CCE> = 0
Configuration mode
requested?
Set [CANMCR]<CCR> to "1"
[CANGSR]<CCE> = 1 ?
21 / 54
TXZ Family
CAN Controller
No
Yes
No
Yes
Rev. 1.1