Use of SDCARD_PWR_EN and SDIO_RST# pin in Tx2 4GB

Robotics & Edge Computing Jetson & Embedded Systems Jetson TX2
1

Hi Team,

I am using SDCARD port(which is SDMMC1 port of Tegra X2) of TX2 for eMMC flash and SDIO port exposed in TX2 4GB for interfacing a WiFi module.

Now I am using SDCARD_PWR_EN(which is a GPIO_EDP3 pin) pin to control on/off of WLAN module, hence I wanted to know if this pin can be used as a independent GPIO while using SDCARD port for eMMC?

Similarly SDIO_RST# pin has been interfaced to eMMC reset pin, please confirm if this arrangement is ok as well or not,

Kindly let me know.

Thanks.

3

SDMMC1 is NOT for eMMC and for SDCARD/SDIO only.
SDCARD_PWR_EN and SDIO_RST# can be used as GPIO independently.