MSPM0L1306: An external wake source for STANDBY

Yes, I think you can treat it as a IRQ to handle, except for waking from shutdown.

Hi Eason,

According to TRM section 2.1.2.4 "STANDY Mode", GPIO is not clocked in STANDBY1.


It seems GPIO can still wake up the system with asynchronous fast clock request, but are you sure GPIO registers properly keep the status of each pin?

Thanks and regards,
Koichiro Tashiro  

Yes

Eason,

The description simply means register configurations and SRAM contents are retained during STANDY1.
It does not necessarily mean GPIO status is properly logged during STANDY1.
What the customer would like to make sure is an external event triggered during STANDY1 is properly logged inside GPIO module even if clock is gated.

Thanks and regards,
Koichiro Tashiro

Yes, you are right. I think you may know that:

1. GPIO can wake the MSPM0.

2. After wake-up GPIO peripheral will have clock. Then can judge which cause the wake-up. Then it can enter the IRQ.