Nvidia Jetson AGX Xavier Series User Manual

Jetson AGX Xavier Series Product DG-09840-001_v2.5 | 94
Chapter 11. SDIO and SD Card
Jetson AGX Xavier has two SD/MMC interfaces. One is used on Jetson AGX Xavier for eMMC for
boot and storage and one is brought to the connector pins for SD Card or SDIO use.
Table 11-1. SDIO, SD Card, and eMMC Interface Mapping
Module Pins SoC Interface Width Usage
SDCARD_CLK SDMMC1 4-bit Micro SD / UFS Card socket
na SDMMC4 8-bit eMMC device on Module
Table 11-2. Jetson AGX Xavier SDMMC Pin Descriptions
Pin #
Module Pin
Name
SoC Signal Usage/Description
Usage on NVIDIA Carrier
Board
Direction Pin Type
B6 SDCARD_CLK SDMMC1_CLK SD Card (or SDIO) Clock
Micro SD / UFS Card Socket
Output
CMOS – 3.3V/1.8V
A5 SDCARD_CMD SDMMC1_CMD SD Card (or SDIO) Command
Bidir
E8 SDCARD_D0 SDMMC1_DAT0 SD Card (or SDIO) Data 0
F8 SDCARD_D1 SDMMC1_DAT1 SD Card (or SDIO) Data 1
A4 SDCARD_D2 SDMMC1_DAT2 SD Card (or SDIO) Data 2
D6
SDCARD_D3
SDMMC1_DAT3
SD Card (or SDIO) Data 3
B58 GPIO21 DAP6_SCLK GPIO SD Power Switch On Output CMOS – 3.3V
L6 GPIO02 SOC_GPIO11 GPIO SD Card socket (SD Detect) Bidir CMOS – 1.8V
Notes:
1. In the Type/Dir column, Output is from Jetson AGX Xavier. Input is to Jetson AGX Xavier. Bidir is for Bidirectional signals.
2. The direction shown in the table above for SDCard_CLK and GPIO21 is true when used for those functions. If used as a GPIO, the pin supports
input or output (bidirectional).
11.1 SD Card
Figure 11-1 shows a Micro SD card socket connection example. Internal pull-up resistors are
used for SDCARD Data/CMD lines. External pull-ups are not required and cannot be used due
to the internal pad voltage selection.

Nvidia Jetson AGX Xavier Series Specifications

General

Brand	Nvidia
Model	Jetson AGX Xavier Series
Category	Computer Hardware
Language	English