Regarding the SD card on Jetson TX1

Robotics & Edge Computing Jetson & Embedded Systems Jetson TX1
1

新年快乐！
最近在设计TX1的模组底板的过程中，遇到了SD卡这个问题，手册中提到的SD卡的D0\D1是1.8/3.3V兼容的，而CMD、PWR_EN等管脚是1.8-CMOS，那么，实际的SD卡接口设计时，直接参考Demo板的原理图吗？还是需要进行电平转换？
谢谢

2

Hi Bill,

Table 56 of OEM DG shows the pin type, Data, CLK and CMD are all 3.3/1.8V.
PWR_EN, CD#, WP are control signals, only support 1.8V.
Just follow demo schematic and OEM DG, no need level shift.