This page describes miscellaneous interfaces on Jetson AGX Xavier, including UART, I2C, SDMMC...
UART
| UART Instance |
Base Address |
Ball Name |
Pin on 699 Connector |
Usage on Jetson AGX Xavier |
Pin Type |
Bus Name |
DTS node |
DTS status |
DTS alias
|
| UARTA |
0x03100000 |
UART1_{TX,RX,RTS,CTS} |
UART1 (K53,K54,L51,H54) |
Use for UART connector 40 pin connector |
CMOS – 1.8V |
ttyTHS0 |
serial@3100000 |
OK |
serial0
|
| UARTB |
0x03110000 |
UART2_{TX,RX,RTS,CTS} |
UART2 (C58,C56,G58,A57) |
UART debug chip FT4232 |
CMOS – 1.8V |
ttyTHS1 |
serial@3110000 |
OK |
serial1
|
| UARTC |
0x0c280000 |
UART3_{TX,RX} |
UART3 (H62,K60) |
UART debug chip FT4232 |
CMOS – 1.8V |
ttyTHS2 |
serial@c280000 |
Disabled |
serial2
|
| UARTD |
0x03130000 |
UART4_{TX,RX,RTS,CTS} |
UART4 (L5,L48,L4,L49) |
Use for normal GPIO for CAM |
CMOS – 1.8V |
ttyTHS3 |
serial@3130000 |
Disabled |
serial3
|
| UARTE |
0x03140000 |
UART5_{TX,RX,RTS,CTS} |
UART5 (J58,H58,K58,H57) |
Use for the M.2 KEY E connector |
CMOS – 1.8V |
ttyTHS4 |
serial@3140000 |
OK |
serial4
|
| UARTF |
0x03150000 |
DP_AUX_CH0_{P,N} |
DP0_AUX_CH (F52,F51) |
Use for Display chip |
CMOS – 1.8V if use to UART |
ttyTHS5 |
serial@3150000 |
Disabled |
serial5
|
| UARTG |
0x0c290000 |
SPI2_{SCK,MISO,MOSI,CS0} |
SPI2 (E61,D62,F60,D60) |
Use for PCIe x16 connector |
CMOS – 1.8V if use to UART |
ttyTHS6 |
serial@c290000 |
Disabled |
serial6
|
| UARTH |
0x03170000 |
USB1_{DN,DP} or USB0_{DN,DP} |
USB1(C10,C11) or USB0(F13,F12) |
Use for USB connector |
CMOS – 1.8V if use to UART |
ttyTHS7 |
serial@3170000 |
Disabled |
serial7
|
I2C
| I2C Instance |
Base Address |
Pin on 699 Connector |
Usage on Jetson AGX Xavier |
Pin Type |
Bus Name |
DTS node |
DTS status |
DTS alias
|
| I2C1 |
0x03160000 |
I2C_GP1 (K5,L8) |
ID EEPROM, PM342 connector |
Open-Drain – 1.8V |
i2c-0 |
i2c@3160000 |
OK |
i2c0
|
| I2C2 |
0x0c240000 |
I2C_GP2 (J61,K61) |
CAM connector, M.2 KEY E, PM342 connector, VDD_12V POWER IC |
Open-Drain – 1.8V |
i2c-1 |
i2c@c240000 |
OK |
i2c1
|
| I2C3 |
0x03180000 |
I2C_GP3 (E53,F53) |
PCIE 16X, CAM connector |
Open-Drain – 1.8V |
i2c-2 |
i2c@3180000 |
OK |
i2c2
|
| I2C4 |
0x03190000 |
I2C4 (J52,J53) |
Display chip |
Open-Drain – 1.8V |
i2c-3 |
i2c@3190000 |
OK |
i2c3
|
| I2C5 |
0x031a0000 |
only use on module |
Connector PMU and other power IC |
Open-Drain – 1.8V |
i2c-4 |
bpmp_i2c |
OK |
i2c4
|
| I2C6 |
0x031b0000 |
I2C6 (F52,F51) |
Display chip |
Open-Drain – 1.8V if used I2C |
i2c-5 |
i2c@31b0000 |
OK |
i2c5
|
| I2C7 |
0x031c0000 |
I2C7 (G53,G54) |
HDMI connector |
Open-Drain – 1.8V if used I2C |
i2c-6 |
i2c@31c0000 |
OK |
i2c6
|
| I2C8 |
0x0c250000 |
I2C_GP4 (D61,E60) |
CAM connector, M.2 KEY E, Codec |
Open-Drain – 1.8V |
i2c-7 |
i2c@c250000 |
OK |
i2c7
|
| I2C9 |
0x031e0000 |
I2C_GP5 (A53,C53) |
Not used |
Open-Drain – 1.8V if used I2C |
i2c-8 |
i2c@31e0000 |
OK |
i2c8
|
SDMMC
| SDMMC Instance |
Base Address |
Pin on 699 Connector |
Usage on Jetson AGX Xavier |
Pin Type |
Bus Name |
DTS node |
DTS status |
DTS alias
|
| SDMMC1 |
0x03400000 |
SDCARD (E8,F8,A4,D6) |
Micro SD card |
CMOS -3.3V/1.8V |
mmc1 |
sdhci@3400000 |
OK |
sdhci0
|
| SDMMC3 |
0x03440000 |
Not used on AGX Xavier |
Not used on AGX Xavier |
|
|
sdhci@3440000 |
Disabled |
sdhci2
|
| SDMMC4 |
0x03460000 |
only use on module. For eMMC device |
eMMC5.1 device |
CMOS -1.8V |
mmc0 |
sdhci@3460000 |
OK |
sdhci3
|
