Hi, I’m designing our board based on NX module, and take the developement board as reference. I have several questions about the power event handling.
- How the EFM8SB10F2G handle the SYS_RESET event?
- Where I can find the detailed information about how the chip handle various power events?
Thanks.
EFM8SB10F2G does not handle SYS_RESET, it only controls POWER_EN.
The SYS_RESET is routed to EFM8 through the level shifter U23, then how EFM8 response to this event, simply ignore it?
Thanks.
EFM8 only handle the BUCK_3V3_EN as need. During power on, SYS_RST hold the 3V3 of carrier low.
Okay, I see both SYS_RESET and EFM8 can control BUCK_3V3_EN now. But in what situation the EFM8 will toggle the BUCK_3V3_EN?
Thanks.
When module generates a reset to carrier board, it will hold that low.