Nvidia JETSON XAVIER NX - Chapter 18. General Routing Guidelines; Signal Name Conventions; Table 18-1. Signal Type Codes

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Chapter 18. General Routing Guidelines
18.1 Signal Name Conventions
The following conventions are used in describing the signals for Xavier:
 Signal names use a mnemonic to represent the function of the signal. For example,
Secure Digital Interface Command signal is represented as
SDMMC_CMD, written in bold to
distinguish it from other text. All active-low signals are identified by an asterisk (*) after
the signal name. For example,
SYS_RESET* indicates an active-low signal. Active-high
signals do not have the asterisk after the signal names. For example,
SDMMC_CMD indicates
an active-high signal. Differential signals are identified as a pair with the same names that
end with _P and _N (for positive and negative, respectively). For example,
CSI_0_D0_P and
CSI_0_D0_N indicate a differential signal pair.
 The signal I/O type is represented as a code to indicate the operational characteristics of
the signal. The following table lists the I/O codes used in the signal description tables.
Table 18-1. Signal Type Codes
Code
Definition
A Analog
DIFF I/O Bidirectional Differential Input/Output
DIFF IN Differential Input
DIFF OUT Differential Output
I/O Bidirectional Input/Output
I Input
O Output
OD Open Drain Output
I/OD Bidirectional Input / Open Drain Output
P Power