NVIDIA Jetson Xavier - SD eMMC Interface

NVIDIA®Jetson Xavier™
Introduction
SoM Overview Carrier Boards NVIDIA Xavier Developer Kit Connect Tech Rogue Connect Tech Mimic Software Support NVIDIA JetPack
JetPack 5.X
Getting Started Installing JetPack Flashing the board with GUI installer JetPack Components Compiling Source Code Flashing the Board from Cmdline Performance Tuning Evaluating Performance Set Values Manually Tuning Power Maximizing Performance
Development in the Board
Getting into the Board Using Serial Console Using SSH Using Ubuntu Login Installing Packages
Video Capture and Display
Description Supported Cameras Imx219 Driver Software Support Using GStreamer Using Libargus
Processors
HD Audio and Video Subystem Video Encoder Video Decoder JPEG Encoder and Decoder Video Image Compositor Audio Processing Engine Deep Learning Accelerator Volta GPU Description Using CUDA Using OpenGL
Interfaces
I2C SD/eMMC Controller USB Controller
GStreamer Pipelines
Capture and Display H264 H265 VP9 MPEG4 Simultaneous Streams Compositor
Deep Learning
TensorRT Using TensorRT integrated with Tensorflow Parsing a Tensorflow model for TensorRT Parsing Caffe model for TensorRT Building TensorRT API examples Deep Learning Accelerator Software Support Deep Learning Tutorials Jetson Inference Jetson Reinforcement
RidgeRun Products
GstPTZR GstCUDA GstColorTransfer GstWebRTC GstRtspSink GstInterpipe GstInference GStreamer Daemon GstShark
Reference Documentation
Contact Us

Jetson Xavier has two SD/MMC interfaces. One is used on Jetson Xavier for eMMC for boot & storage and one is brought to the connector pins for SD Card or SDIO use.

Features

Feature	Notes
DDR50	eMMC interface running in DDR mode at 50 MHz
HS200	eMMC interface running in SDR mode at 200 MHz
HS400	eMMC interface running in DDR mode at 200 MHz
HS533	eMMC interface running in DDR mode at 267 MHz
HW tuning	Supports tuning in SDMMC controller
Packed Commands	Read & write commands can be packed in groups (either all read or all write) that transfer data for all commands in the group in one transfer on the bus, to reduce overhead
Cache	Similar to CPU cache, but implemented in eMMC; helps improve performance
Discard	Erases data if necessary during background erase events
Sanitize	Physically removes data from unmapped user address space
RPMB	Secure access
BKOPS	Allows execution of background operations when the host is not being serviced
HPI	High priority interrupt to stop ongoing bkops/reliable writes
Power Off Notification	Allows device to prepare itself to power off properly and improve user experience during power-on
Sleep	Minimizes power consumption of the eMMC device
RTPM	Software feature to save power by switching off clocks when there is no transactions on the bus
Field Firmware Upgrade	Update eMMC firmware
Device Life Estimation Type A Device Life Estimation Type B	Device Health is a mechanism to get vital NAND flash program/erase cycles information as a percentage of useful flash lifespan. Type A: SLC device health information Type B: MLC device health information
PRE EOL Information	Provides indication about device lifetime reflected by average reserved blocks
Hardware Command Queue	Performed by SD/MMC controller
Enhanced Strobe Mode (ESM) in HS400 mode	Optional for devices; indicated by STROBE_SUPPORT[184] register of EXT_CSD
eMMC CQ CQIC feature	Generates coalesced interrupts when the interrupt coalescing mechanism is enabled
Suspend/resume and shutdown

Jetson Xavier SDMMC Pin Descriptions

Pin #	Jetson Xavier Pin Name	SoC Signal	Usage/Description	Usage on the 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	CMOS – 3.3V/1.8V
E8	SDCARD_D0	SDMMC1_DAT0	SD Card (or SDIO) Data 0		Bidir	CMOS – 3.3V/1.8V
F8	SDCARD_D1	SDMMC1_DAT1	SD Card (or SDIO) Data 1		Bidir	CMOS – 3.3V/1.8V
A4	SDCARD_D2	SDMMC1_DAT2	SD Card (or SDIO) Data 2		Bidir	CMOS – 3.3V/1.8V
D6	SDCARD_D3	SDMMC1_DAT3	SD Card (or SDIO) Data 3		Bidir	CMOS – 3.3V/1.8V
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