Xavier/Interfaces/I2C: Difference between revisions

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{{DISPLAYTITLE:NVIDIA Jetson Xavier - I2C Interface|noerror}}
The SoC has nine I2C controllers. Jetson Xavier brings eight of the I2C interfaces out.
The SoC has nine I2C controllers. Jetson Xavier brings eight of the I2C interfaces out.
=Features=
 
==I2C Slave==
==Features==
===I2C Slave===
{| class="wikitable"
{| class="wikitable"
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|-
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| Clock stretching  || Clock line stretching
| Clock stretching  || Clock line stretching
|}
==Jetson Xavier I2C Pin Descriptions==
{| class="wikitable"
|-
! Pin # !! Jetson Xavier Pin Name !! SoC Signal !! Usage/Description !! Usage on the 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  || ID EEPROM || Bidir || Open-Drain – 1.8V
|-
| J61 || I2C2_CLK || GEN2_I2C_SCL || General I2C 2 Clock  || Various || Bidir || Open-Drain – 1.8V
|-
| K61 || I2C2_DAT || GEN2_I2C_SDA || General I2C 2 Data  || Various || Bidir || Open-Drain – 1.8V
|-
| F53 || I2C3_CLK || CAM_I2C_SCL || General I2C 3 Clock || Camera Connector || Bidir || Open-Drain – 1.8V
|-
| E53 || I2C3_DAT || CAM_I2C_SDA || General I2C 3 Data  || Camera Connector || Bidir || Open-Drain – 1.8V
|-
| D61 || I2C4_CLK || GEN8_I2C_SCL || General I2C 4 Clock  || Audio Codec & Camera Connector || Bidir || Open-Drain – 1.8V
|-
| E60 || I2C4_DAT || GEN8_I2C_SDA || General I2C 4 Data  || Audio Codec & Camera Connector || Bidir || Open-Drain – 1.8V
|-
| A53 || I2C5_CLK || DP_AUX_CH3_P || General I2C 5 Clock  || Expansion Connector || Bidir || Open-Drain – 1.8V
|-
| C53 || I2C5_DAT || DP_AUX_CH3_N  || General I2C 5 Data  || Expansion Connector || Bidir || Open-Drain – 1.8V
|-
| F51 || DP0_AUX_CH_N || DP_AUX_CH0_N  || Display Port 0 Aux– or HDMI DDC SDA || USB Type C Conn. J512 || Bidir || rowspan="6" | AC-Coupled on Carrier Board (eDP/DP) or OpenDrain, 1.8V (3.3V tolerant - DDC/I2C)
|-
| F52 || DP0_AUX_CH_P || DP_AUX_CH0_P  || Display Port 0 Aux+ or HDMI DDC SCL  ||USB Type C Conn. J512 || Bidir
|-
| J53 || DP1_AUX_CH_N || DP_AUX_CH1_N || Display Port 1 Aux– or HDMI DDC SDA  ||USB Type C Conn. J513 || Bidir
|-
| J52 || DP1_AUX_CH_P || DP_AUX_CH1_P  ||Display Port 1 Aux+ or HDMI DDC SCL  ||USB Type C Conn. J513 || Bidir
|-
| G54 || DP2_AUX_CH_N || DP_AUX_CH2_N  ||Display Port 2 Aux– or HDMI DDC SDA  ||HDMI Connector || Bidir
|-
| G53 || DP2_AUX_CH_P || DP_AUX_CH2_P  ||Display Port 2 Aux+ or HDMI DDC SCL  ||HDMI Connector || Bidir
|}
==I2C addresses==
{| class="wikitable"
|-
! Bus I2C !! Label Device Tree
|-
| i2c0 || 3160000
|-
| i2c1 || c240000
|-
| i2c2 || 3180000
|-
| i2c3 || 3190000
|-
| i2c4 || 31a0000
|-
| i2c5 || 31b0000
|-
| i2c6 || 31c0000
|-
| i2c7 || c250000
|-
| i2c8 || 31e0000
|}
|}
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{{Xavier/Foot|Interfaces|Interfaces/SD eMMC}}
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Latest revision as of 23:39, 2 October 2024




Previous: Interfaces Index Next: Interfaces/SD eMMC


NVIDIA®Jetson Xavier™
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The SoC has nine I2C controllers. Jetson Xavier brings eight of the I2C interfaces out.

Features

I2C Slave

Feature Notes
Normal/Byte mode I2C controller configuration on byte mode
FIFO mode I2C controller configuration on FIFO mode
7-bit addressing
10-bit addressing
Repeat start Repeat start on transfer of data
Clock stretching Clock line stretching

Jetson Xavier I2C Pin Descriptions

Pin # Jetson Xavier Pin Name SoC Signal Usage/Description Usage on the 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 ID EEPROM Bidir Open-Drain – 1.8V
J61 I2C2_CLK GEN2_I2C_SCL General I2C 2 Clock Various Bidir Open-Drain – 1.8V
K61 I2C2_DAT GEN2_I2C_SDA General I2C 2 Data Various Bidir Open-Drain – 1.8V
F53 I2C3_CLK CAM_I2C_SCL General I2C 3 Clock Camera Connector Bidir Open-Drain – 1.8V
E53 I2C3_DAT CAM_I2C_SDA General I2C 3 Data Camera Connector Bidir Open-Drain – 1.8V
D61 I2C4_CLK GEN8_I2C_SCL General I2C 4 Clock Audio Codec & Camera Connector Bidir Open-Drain – 1.8V
E60 I2C4_DAT GEN8_I2C_SDA General I2C 4 Data Audio Codec & Camera Connector Bidir Open-Drain – 1.8V
A53 I2C5_CLK DP_AUX_CH3_P General I2C 5 Clock Expansion Connector Bidir Open-Drain – 1.8V
C53 I2C5_DAT DP_AUX_CH3_N General I2C 5 Data Expansion Connector Bidir Open-Drain – 1.8V
F51 DP0_AUX_CH_N DP_AUX_CH0_N Display Port 0 Aux– or HDMI DDC SDA USB Type C Conn. J512 Bidir AC-Coupled on Carrier Board (eDP/DP) or OpenDrain, 1.8V (3.3V tolerant - DDC/I2C)
F52 DP0_AUX_CH_P DP_AUX_CH0_P Display Port 0 Aux+ or HDMI DDC SCL USB Type C Conn. J512 Bidir
J53 DP1_AUX_CH_N DP_AUX_CH1_N Display Port 1 Aux– or HDMI DDC SDA USB Type C Conn. J513 Bidir
J52 DP1_AUX_CH_P DP_AUX_CH1_P Display Port 1 Aux+ or HDMI DDC SCL USB Type C Conn. J513 Bidir
G54 DP2_AUX_CH_N DP_AUX_CH2_N Display Port 2 Aux– or HDMI DDC SDA HDMI Connector Bidir
G53 DP2_AUX_CH_P DP_AUX_CH2_P Display Port 2 Aux+ or HDMI DDC SCL HDMI Connector Bidir

I2C addresses

Bus I2C Label Device Tree
i2c0 3160000
i2c1 c240000
i2c2 3180000
i2c3 3190000
i2c4 31a0000
i2c5 31b0000
i2c6 31c0000
i2c7 c250000
i2c8 31e0000


Previous: Interfaces Index Next: Interfaces/SD eMMC



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