SPRUIE9D May 2017 – May 2024 DRA74P , DRA75P , DRA76P , DRA77P
Issuing a clock stop request puts the MCAN module into Power Down mode (Sleep Mode). During transition from IDLE to ACTIVE, if the MCANSS_CTRL[5] AUTOWAKEUP and MCANSS_CTRL[4] WAKEUPREQEN bits are enabled, after the MCAN Core respond to the removal of the clock stop request with removing the clock stop acknowledge, a read-modify-write will be issued to clear the MCAN_CCCR[0] INIT bit and the MCAN core will resume operation.
If the MCANSS_CTRL[4] WAKEUPREQEN bit is set, the MCAN module provides a wakeup request (SWakeup) on any of the following wakeup events:
To clear the SWakeup in case any of these events is active, the MCANSS_CTRL[4] WAKEUPREQEN bit should be cleared. The MCAN module adds a third wakeup event source - interrupt line 0 (INT0). In this case the SWakeup is cleared by clearing the interrupt source.