Miscellaneous Interfaces
PRELIMINARY INFORMATION
Jetson Orin NX Series and Jetson Orin Nano Series DG-10931-001_v1.1 | 69
Table 12-3. I2C Signal Connections
1.5 k pull-ups to VDD_3V3 on
the module.
I2C #0 Clock and Data. Connect to CLK and Data pins of any
3.3V devices
2.2 k pull-ups to VDD_3V3 on
the module.
I2C #1 Clock and Data. Connect to CLK and Data pins of 3.3V
devices.
2.2 k pull-ups to VDD_1V8 on
the module.
I2C #2 Clock and Data. Connect to CLK and Data pins of any
1.8V devices
2.2 k pull-ups to VDD_3V3 on
the module.
Camera I2C Clock and Data. Connect to CLK and Data pins
of any 3.3V devices
Notes:
1. If some devices require a different voltage level than others connected to the same I2C bus, level shifters are required.
2. For I2C interfaces that are pulled up to 1.8V, disable the RCV_33_18_SEL option for these pads. For I2C interfaces that are pulled
up to 3.3V, enable the RCV_33_18_SEL option. The RCV_33_18_SEL option is selected in the Pinmux registers.
12.2 SPI
The Orin module brings out two of the Orin SPI interfaces. See Figure 12-2.
Table 12-4. Orin Module SPI Pin Descriptions
SPI 0 Initiator In / Target Out
SPI 0 Initiator Out / Target In
SPI 1 Initiator In / Target Out
SPI 1 Initiator Out / Target In
Notes: In the Direction column, Output is from Orin module. Input is to Orin module. Bidir is for Bidirectional signals.
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