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Hi,
Assume system configuration is: CM4 in a switchable power domain and WIC in always on domain. Also in response to "seeldeep" if the power management unit is powering down the CM4 and with no logic retention.
Given this system configuration, power management unit powers the CortexM4 in response to "sleepdeep". When power management unit receives a wake up event from WIC, it powers up the CM4 and de-asserts por and sys resets. When CM4 is powered up and out of reset, does it generate WICCLEAR signal to clear the WIC?
Regards,
Dhaval
That's right. When the Cortex-M4 come out from reset it won't assert WICCLEAR.
regards,
Joseph