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CHAPTER 19 FCAN CONTROLLER (V850/SC3)
User’s Manual U15109EJ3V0UD
672
19.12.4 CAN sleep mode
In CAN sleep mode, the FCAN controller can be set to standby mode. A wakeup occurs when there is a bus
operation.
Figure 19-46. CAN Sleep Mode Setting
START
End of CAN sleep mode setting
No
Yes
SLEEP = 1
(CnCTRL)
set SLEEP = 1
clear SLEEP = 0
(CnCTRL)
Remark
n = 1, 2
Figure 19-47. Clearing CAN Sleep Mode by CAN Bus Active Status
START
CAN bus active
SLEEP = 0 (CnCTRL)
WAKE = 1 (CnDEF)
Wake-up interrupt occurs
End of CAN sleep mode clearing operation
Remark
n = 1, 2