NEC UPD703116 User Manual page 603

Figure 11-35. CAN1 Control Register (C1CTRL) Settings
Set time stamp for
receiving
Set overwrite for
receive message
buffer
Set dominant level for
transmit pins
Set dominant level for
receive pins
CHAPTER 11 FCAN CONTROLLER
START
Store timer value
when SOF occurs?
Yes
clear TMR = 1 set TMR = 1
set TMR = 0 clear TMR = 0
Store message
of DN flag?
Yes
clear OVM = 1 set OVM = 1
set OVM = 0 clear OVM = 0
Set dominant level
to low level?
Yes
clear DLEVT = 1 set DLEVT = 1
set DLEVT = 0 clear DLEVT = 0
Set dominant level
to low level?
Yes
clear DLEVR = 1 set DLEVR = 1
set DLEVR = 0 clear DLEVR = 0
User's Manual U14492EJ5V0UD
No
Store timer value when
EOF occurs
No
Do not overwrite message in
DN flag (delete new message)
No
Set dominant level
to high level
No
Set dominant level
to high level
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