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2.2.3
Muxing Options
Ethernet Controllers implementing a fully integrated media access controller (MAC) and physical
layer interface (PHY) with a PCI Express connection may be connected to either PCI Express port.
Intel® Ethernet Connection physical layer (PHY) devices must be connected to HSIO2_TX/RX (pins
D14/D15 and C14/C15). The device must send the appropriate VDM during power on negotiation
to select Ethernet function. Intel® Ethernet Connection physical layer (PHY) devices may not be
supported on all Compute Card compatible devices, please check the product specification for
the Compute Card device intending to be supported.
HSIO1_RX/TX and HSIO2_RX/TX can be selected for either PCI Express or Serial ATA (SATA)
operation. The device must send the appropriate VDM during power on negotiation to select the
desired operating mode.
Display options for the connector extension can be selected for either HDMI or DisplayPort using
DDI_Config.
2.2.4
Connector Pinout
The Intel® Compute Card has a single connector that supports the following signals shown in
Table 8.
Figure 4. Compute Card Connector Pinout
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