Table-2. Abbreviations and Acronyms Used in This Manual
Abbreviation
Definition
SOM
System on Module; used in reference to the PCL-051/WEGA Board
System on Module
TRM
Technical Reference Manual
VBAT
SOM battery supply input
Different types of signals are brought out at the phyCORE-Connector. The following table lists the
abbreviations used to specify the type of a signal.
Table-3. Types of Signals
Type of Signal
Description
Abbreviation
Power
Supply voltage
PWR
Ref-Voltage
Reference voltage
REF
USB-Power
USB voltage
USB
Input
Digital input
IN
Output
Digital output
OUT
Input with pull-up
Input with pull-up (jumper or
open-collector output)
IPU
Input/output
Bidirectional input/output
IO
5V Input with
pull-down
5V tolerant input with pull-down
5V_PD
LVDS
Differential line pairs 100 Ohm
LVDS level
LVDS
Differential 90
Ohm
Differential line pairs 90 Ohm
DIFF90
Differential 100
Ohm
Differential line pairs 100 Ohm
DIFF100
Analog
Analog input or output
Analog
© PHYTEC Embedded Pvt. Ltd. 2014 5
