Can Routing Guidelines; Fan; Figure 12-6. Orin Module Can Connections; Table 12-10. Can Interface Signal Routing Requirements - Nvidia Jetson Orin NX Series Product Manual

Figure 12-6. Orin Module CAN Connections
Jetson
SoC - CAN
GP17_CAN0_DOUT
GP18_CAN0_DIN
12.4.1

CAN Routing Guidelines

The section describes the CAN routing guidelines for Orin module.
Table 12-10. CAN Interface Signal Routing Requirements
Parameter
Max Data Rate / Frequency
Configuration / Device Organization
Reference plane
Trace Impedance
Via proximity (Signal via to GND return via)
Trace spacing: Microstrip / Stripline
Max Trace Length (for RX and TX only)
Max Trace Length/Delay Skew from RX to TX
Table 12-11. CAN Signal Connections
Module Pin Name
CAN_TX
CAN_RX
12.5

Fan

Orin module provides PWM and Tachometer functionality for controlling a fan as part of the
thermal solution. Information on the PWM and Tachometer pins and functions can be found in
the following locations:
Orin Module Pin Mux

This is used to configure
•
used for
FAN_PWM
as a GPIO.
Orin (SoC) Technical Reference Manual (TRM)

Functional descriptions and related registers can be found in the TRM for the
•
(PWM chapter).
PRELIMINARY INFORMATION
Jetson Orin NX Series and Jetson Orin Nano Series
CAN_TX
145
CAN_RX
143
Requirement
8
1
GND
50
< 3.8 (24)
4x / 3x
223 (1360)
8 (50)
Type Termination
O
I
(PWM) for
GPIO14
is configured as
GP_PWM6
CAN
PHY
Units
Mbps / MHz
load
mm (ps)
dielectric
mm (ps)
mm (ps)
Description
CAN Transmit: Connect to matching pin of device
CAN Receive: Connect to Peripheral pin of device
and GPIO08 for
FAN_PWM
. The pin used for
Miscellaneous Interfaces
Notes
±15%
See Note 1
See Note 2
See Note 2
. The pin
FAN_TACH
is configured
FAN_TACH
FAN_PWM
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