I am designing a carrier card with a MicroSD card, not an SD card. The MicroSD cards do not have the CD (carrier detect signal).
What should I do with the SDCARD_CD# signal? Leave it floating? Connect it to the DAT3 pin that is labeled DATA3_CD? Will the MicroSD card even operate without the SDCARD_CD# pin connected.
I read in another thread that the SDCARD_CD# only turns on the SDCARD_PWR_EN, so I just need to be sure to always keep the 3V3 on for the SDCard.
Thanks for the help.