
L-827e.A3 phyCORE-i.MX 6UL/ULL Hardware Manual
© PHYTEC Messtecknik GmbH
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2.2 Types of Signals
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 1: Signal Types used in this Manual
Signal Type
Description
Abbr.
Power
Supply voltage input
PWR_I
Ref-Voltage
Reference voltage output
REF_O
Input
Digital input
I
Output
Digital output
O
IO
Bidirectional input/output
I/O
OC-Bidir PU
Open collector input/output with pull up
OC-BI
OC-Output
Open collector output without pull up requires an
external pull up
OC
5V Input PD
5 V tolerant input with pull-down
5V_PD
LVDS Input
Differential line pairs 100 Ohm LVDS level input
LVDS_I
LVDS Output
Differential line pairs 100 Ohm LVDS level output
LVDS_O
TMDS Output
Differential line pairs 100 Ohm TMDS level output
TMDS_O
USB IO
Differential line pairs 90 Ohm USB level bidirectional
input/output
USB_I/O
ETHERNET Input
Differential line pairs 100 Ohm Ethernet level input
ETH_I
ETHERNET Output
Differential line pairs 100 Ohm Ethernet level output
ETH_O
ETHERNET IO
Differential line pairs 100 Ohm Ethernet level
bidirectional input/output
ETH_I/O
PCIe Input
Differential line pairs 100 Ohm PCIe level input
PCIe_I