Nvidia Jetson TX2 NX - Audio Interfaces; Audio Pin Description

NVIDIA Jetson TX2 NX DG-10141-001_v1.1 | 54
Chapter 10. Audio
Jetson TX2 NX supports multiple PCM/I2S audio interfaces and includes a flexible audio-port
switching architecture.
Table 10-1. Jetson TX2 NX Audio Pin Description
Pin # Module Pin Name
Jetson TX2 NX
Function
Tegra X2 Signal Usage/Description
Usage on DevKit
Carrier Board
Direction Pin Type
193 I2S0_DOUT I2S0_DOUT DAP1_DOUT I2S Audio Port 0 Data Out
Expansion Header
Output
CMOS – 1.8V
195 I2S0_DIN I2S0_DIN DAP1_DIN I2S Audio Port 0 Data In Input
197 I2S0_FS I2S0_FS DAP1_FS
I2S Audio Port 0 Left/Right
Clock
Bidir
199 I2S0_SCLK I2S0_SCLK DAP1_SCLK I2S Audio Port 0 Clock Bidir
220 I2S1_DOUT I2S1_DOUT DMIC2_CLK I2S Audio Port 1 Data Out
M.2 Key E
Output
222 I2S1_DIN I2S1_DIN DMIC1_DAT I2S Audio Port 1 Data In Input
224 I2S1_FS I2S1_FS DMIC1_CLK
I2S Audio Port 1 Left/Right
Clock
Bidir
226 I2S1_SCLK I2S1_SCLK DMIC2_DAT I2S Audio Port 1 Clock Bidir
124
GPIO02 I2S2_DOUT GEN7_I2C_SDA I2S Audio Port 2 Data Out Output
CMOS – 1.8V
126
GPIO03 I2S2_DIN GEN9_I2C_SCL I2S Audio Port 2 Data In Input
127
GPIO04 I2S2_FS GEN9_I2C_SDA
I2S Audio Port 2 Left/Right
Clock
Power LED control Bidir
128
GPIO05 I2S2_SCLK GEN7_I2C_SCL I2S Audio Port 2 Clock
M.2 Key E
Bidir
112 SPI1_CS1* I2S3_DIN DAP2_DIN I2S Audio Port 3 Data In Input
CMOS – 1.8V
218 GPIO12 I2S3_DOUT DAP2_DOUT I2S Audio Port 3 Data Out Expansion Header Output
130 GPIO06 I2S3_FS DAP2_FS
I2S Audio Port 3 Left/Right
Clock
Camera mux select Bidir
212 GPIO10 I2S3_SCLK DAP2_SCLK I2S Audio Port 3 Clock M.2 Key E Bidir
211 GPIO09 AUD_MCLK
GPIO #9 or Audio Codec Master
Clock
Expansion Header Output CMOS – 1.8V
Notes:
1. In the Type/Dir column, Output is from Jetson TX2 NX. Input is to Jetson TX2 NX. Bidir is for Bidirectional signals.
2. The directions for pins with I2S functions and GPIO09 are true when used for those functions. Otherwise as GPIOs, the
directions are bidirectional.