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2.3.1 COM Express Row C/D Connector (CN1)
Row C
Pin
Signal
C1
GND (FIXED)
C2
GND (FIXED)
C3
USB_SSRX0-
C4
USB_SSRX0+
C5
GND (FIXED)
C6
USB_SSRX1-
C7
USB_SSRX1+
C8
GND (FIXED)
C9
USB_SSRX2-
C10
USB_SSRX2+
C11
GND (FIXED)
C12
USB_SSRX3-
C13
USB_SSRX3+
C14
GND (FIXED)
C15
DDI1_PAIR6+(NC)
C16
DDI1_PAIR6-(NC)
C17
RSVD
C18
RSVD
C19
PCIE_RX6+
C20
PCIE_RX6-
C21
GND (FIXED)
C22
PCIE_RX7+
C23
PCIE_RX7-
C24
DDI1_HPD
Chapter 2 – Hardware Information
Row D
Pin
Signal
D1
GND (FIXED)
D2
GND (FIXED)
D3
USB_SSTX0-
D4
USB_SSTX0+
D5
GND (FIXED)
D6
USB_SSTX1-
D7
USB_SSTX1+
D8
GND (FIXED)
D9
USB_SSTX2-
D10
USB_SSTX2+
D11
GND (FIXED)
D12
USB_SSTX3-
D13
USB_SSTX3+
D14
GND (FIXED)
D15
DDI1_CTRLCLK_AUX+
D16
DDI1_CTRLDATA_AUX-
D17
RSVD
D18
RSVD
D19
PCIE_TX6+
D20
PCIE_TX6-
D21
GND (FIXED)
D22
PCIE_TX7+
D23
PCIE_TX7-
D24
RSVD
10
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