Jetson AGX Xavier Series Product
DG-09840-001_v2.5 | 103
Chapter 13.
Miscellaneous Interfaces
13.1
I2C
The SoC has nine I2C controllers. Jetson AGX Xavier brings eight of the I2C interfaces out,
which are shown in the following tables. The assignments in Table 13-2 should be used for the
I2C interfaces:
Table 13-1.
Jetson AGX Xavier I2C Pin Description
Pin #
Module Pin
Name
SoC Signal
Usage/Description
Usage on NVIDIA
Carrier Board
Direction
Pin Type
K5
I2C1_CLK
GEN1_I2C_SCL
General I2C 1 Clock
ID EEPROM
Bidir
Open-Drain – 1.8V
L8
I2C1_DAT
GEN1_I2C_SDA
General I2C 1 Data
J61
I2C2_CLK
GEN2_I2C_SCL
General I2C 2 Clock
Various
K61
I2C2_DAT
GEN2_I2C_SDA
General I2C 2 Data
F53
I2C3_CLK
CAM_I2C_SCL
General I2C 3 Clock
Camera Connector
E53
I2C3_DAT
CAM_I2C_SDA
General I2C 3 Data
D61
I2C4_CLK
GEN8_I2C_SCL
General I2C 4 Clock
Audio Codec and Camera
Connector
E60
I2C4_DAT
GEN8_I2C_SDA
General I2C 4 Data
A53
I2C5_CLK
DP_AUX_CH3_P
General I2C 5 Clock
Expansion Connector
C53
I2C5_DAT
DP_AUX_CH3_N
General I2C 5 Data
F51
DP0_AUX_CH_N
DP_AUX_CH0_N
DisplayPort 0 Aux– or HDMI DDC SDA
USB Type C Conn. J512
(via Alt Mode Switch)
AC-Coupled on
Carrier Board
(eDP/DP) or Open-
Drain, 1.8V (3.3V
tolerant - DDC/I2C)
F52
DP0_AUX_CH_P
DP_AUX_CH0_P
DisplayPort 0 Aux+ or HDMI DDC SCL
J53
DP1_AUX_CH_N
DP_AUX_CH1_N
DisplayPort 1 Aux– or HDMI DDC SDA
USB Type C Conn. J513
(via Alt Mode Switch)
J52
DP1_AUX_CH_P
DP_AUX_CH1_P
DisplayPort 1 Aux+ or HDMI DDC SCL
G54
DP2_AUX_CH_N
DP_AUX_CH2_N
DisplayPort 2 Aux– or HDMI DDC SDA
HDMI Connector
G53
DP2_AUX_CH_P
DP_AUX_CH2_P
DisplayPort 2 Aux+ or HDMI DDC SCL
Notes:
1. In the Type/Dir column, Output is from Jetson AGX Xavier. Input is to Jetson AGX Xavier. Bidir is for Bidirectional signals.