S32K312 GPIO register state whether retained after standby mode

[feiyiniu]

when in view power management system，in standby mode，the GPIO power supply is not enabled，as following picture shows，can i understood that the GPIO register state will not be retained after standby mode? Thanks!

[Senlent]

Hi@feiyiniu

Yes, after reset or interrupt to exit Standby mode, the GPIO configuration will be reset, but S32K3 has the feature of pad keeping

please take a look at the S32K3XXRM-rev5,the chapter:40.9 Pad keeping

Pad keeping allows you to return to I/O Run mode configuration settings after using I/O during Standby mode. It eliminates I/O reconfiguration in Run mode

[feiyiniu]

Thanks！