CCOMe-C79
CCOMe-C79 - Rev. First Edition: 1.0 - Last Edition: 1.0 - Author: A.R. - Reviewed by E.S. Copyright © 2021 SECO S.p.A.
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PCI-e Slots
CCOMe-C79 board offer a possibility of expansion through two standard PCI-e x4 and one standard PCI-e x8 card edge connectors,
PCI-e x4 card edge connectors are type WINWIN p/n WPES-064AN41B22UWC or equivalent, with the pinout shown in the following
table.
PCI-e x8 card edge connectors are type WINWIN p/n WPES-098AN41B22UWC or equivalent, with the pinout shown in the following
table.
On first slot CN12, are carried out PCI-e lanes #0..#3 coming from COM Express connector (rows A-B).
On second slot CN14, are carried out PCI-e lanes #4..#7 coming from COM Express connector (rows A-B-C-D).
On second slot CN57, are carried out PCI-e lanes #8..#15 coming from COM Express connector (rows A-B).
Please be aware that availability of all sixteen PCI express lanes depends on the COM Express module used.
Please check the User Manual of the COM Express module used for details about the availability of these lanes and all possible groupings that can be applied to
these lanes.
On CCOMe-C79 carrier board, the PCI-express compatibility is ensured with devices up to Gen3.
PCI-e x 4 Slot CN12
Description
Pin name
Pin nr.
Pin nr.
Pin name
Description
+12V Power Rail
+12V_RUN
B1
A1
PRSNT1#
Hot Plug presence detect (tied to GND)
+12V Power Rail
+12V_RUN
B2
A2
+12V_RUN
+12V Power Rail
+12V Power Rail
+12V_RUN
B3
A3
+12V_RUN
+12V Power Rail
Power Ground
GND
B4
A4
GND
Power Ground
SM Bus Clock line. +3.3V_RUN electrical level with
up resistor, derived by SMB_CK with
mosfet voltage level converter
PCIE_ SMB_CLK
B5
A5
JTAG2
Not connected
SM Bus Data line. +3.3V_RUN electrical level with
up resistor, derived by SMB_DAT with
mosfet voltage level converter
PCIE_ SMB_DAT
B6
A6
JTAG3
Not connected
Power Ground
GND
B7
A7
JTAG4
Not connected
+3.3V Power Rail
+3.3V_RUN
B8
A8
JTAG5
Not connected
Not Connected
JTAG1
B9
A9
+3.3V_RUN
+3.3V Power Rail
+3.3V Auxiliary Power Rail
+3.3V_ALW
B10
A10
+3.3V_RUN
+3.3V Power Rail
Wake signal for link reactivation
WAKE0#
B11
A11
PCIEx4_1_RST#
Reset signal to the add-in card, derived by
