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2016
congatec
AG
TR33m10
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9
Signal Descriptions and Pinout Tables
The following section describes the signals found on COM Express™ Type 6 connectors used for congatec AG modules. The pinout of the
modules complies with COM Express Type 6 Rev. 2.1.
Table 2 describes the terminology used in this section for the Signal Description tables. The PU/PD column indicates if a COM Express™
module pull-up or pull-down resistor has been used, if the field entry area in this column for the signal is empty, then no pull-up or pull-down
resistor has been implemented by congatec.
The “#” symbol at the end of the signal name indicates that the active or asserted state occurs when the signal is at a low voltage level. When
“#” is not present, the signal is asserted when at a high voltage level.
Table 11
Signal Tables Terminology Descriptions
Term
Description
I
Input Pin
O
Output Pin
OC
Open Collector
OD
Open Drain
PU
Implemented pull-up resistor
PD
Implemented pull-down resistor
I/O 3.3V
Bi-directional signal 3.3V tolerant
I/O 5V
Bi-directional signal 5V tolerant
I/O 3.3VSB
Bi-directional signal 3.3V tolerant active in standby state
I 3.3V
Input 3.3V tolerant
I 5V
Input 5V tolerant
O 3.3V
Output 3.3V signal level
O 5V
Output 5V signal level
P
Power Input
DDC
Display Data Channel
PCIE
In compliance with PCI Express Base Specification
PEG
PCI Express Graphics
SATA
In compliance with Serial ATA specification, Revision 3.0.
REF
Reference voltage output. May be sourced from a module power plane.
PDS
Pull-down strap. A module output pin that is either tied to GND or is not connected. Used to signal
module capabilities (pinout type) to the Carrier Board.
