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5.10 PCIexpress and Express Card
The COM Express® Eval Type 10 provides one PCIexpress x1 port, two PCIexpress x16 ports (electrically x1) and one
Express Card Slot in different configuration. To allow usage of multiple PCIexpress connectors and PCI the PEX8505
PCIexpress switch (U31) is connected to module's PCIexpress Lane #0.
PCIe switch enabled
If PEX8505 PCIe switch is enabled (J62 closed, default) the following routing is active
Computer-on-Module
PCIe Lane #0
-
-
-
-
The PCIexpress Slot A (J25) is disabled in this configuration and marked by red LED D75.
Note:
Module PCI Express lanes #1 -#3 are not connected if PCIe switch is enabled
PCIe switch disabled
If PEX8505 PCIe switch is disabled (J62 open) the following routing is active
Computer-on-Module
PCIe Lane #0
PCIe Lane #1
PCIe Lane #2
PCIe Lane #3
The PCIexpress Slot C (J27) is disabled in this configuration and marked by red LED D74.
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COM Express® Eval Type 10 / Connectors and Features
PCIe switch PEX8505
PCIe Lane #0: Uplink
PCIe Lane #1
PCIe Lane #2
PCIe Lane #3
PCIe Lane #4
Connector
PCIe Slot A J25
Express Card J41
PCIe2PCI Bridge
PCIe Slot B J26
Connector
-
Express Card J41
PCIe2PCI Bridge
PCIe Slot B J26
PCIe Slot C J27
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