Nvidia Jetson TX2 NX User Manual

NVIDIA Jetson TX2 NX DG-10141-001_v1.1 | 51
Chapter 9. SD Card and SDIO
Jetson TX2 NX uses one SDMMC interface for on-module eMMC (SDMMC4 on Tegra X2) and
brings one to the connector pins for SD Card or SDIO use.
Table 9-1. Jetson TX2 NX SDIO Pin Description
Pin # Module Pin Name Tegra X2 Signal Usage/Description
Usage on DevKit
Carrier Board
Direction Pin Type
229 SDMMC_CLK SDMMC3_CLK SD Card or SDIO Clock
Not Assigned
Output
CMOS –
1.8V/3.3V
227 SDMMC_CMD SDMMC3_CMD SD Card or SDIO Command
Bidir
219 SDMMC_DAT0 SDMMC3_DAT0 SD Card or SDIO Data 0
221 SDMMC_DAT1 SDMMC3_DAT1 SD Card or SDIO Data 1
223
SDMMC_DAT2
SDMMC3_DAT2
SD Card or SDIO Data 2
225 SDMMC_DAT3 SDMMC3_DAT3 SD Card or SDIO Data 3
Notes:
1. In the Type/Dir column, Output is from Jetson TX2 NX. Input is to Jetson TX2 NX. Bidir is for Bidirectional signals.
2. The directions for SDMMC_x are true when used for these functions. Otherwise as GPIOs, the directions are bidirectional.

Nvidia Jetson TX2 NX Specifications

General

Brand	Nvidia
Model	Jetson TX2 NX
Category	Computer Hardware
Language	English