Hi,all
when I see the evm8168 Circuit schematics which spectrum digital provided. In page 35 ,it is about SD interface. I find U66 is FDC6631L,it work like a switch。
The MMC_POW provide power for SD Card。When I plug the SD card ,it should be high level。Is it correct?
When I Used the oscilloscope observing MMC_POW signal,I find it could be a short time low level.Is it correct?
If the MMC_POW is always high level, I can remove the U66 .
Looking forward your reply.
Thanks
Zhao