cExpress-AL
Pinouts and Signal Descriptions
23
3.4. CD Signal Descriptions
3.4.1.
USB 3.0 extension
Signal
Pin
Description
I/O
PU/PD
Comment
USB_SSRX0-
US
C3
C4
Additional Receive signal differential pairs for the
SuperSpeed USB data path on USB0
I PCIE
AC coupled off
Module
USB_SSTX0-
US
D3
D4
Additional Transmit signal differential pairs for the
SuperSpeed USB data path on USB0
O PCIE
AC coupled on
Module
USB_SSRX1-
US
C6
C7
Additional Receive signal differential pairs for the
SuperSpeed USB data path on USB1
I PCIE
AC coupled off
Module
USB_SSTX1-
US
D6
D7
Additional Transmit signal differential pairs for the
SuperSpeed USB data path on USB1
O PCIE
AC coupled on
Module
USB_SSRX2-
US
C9
C10
Additional Receive signal differential pairs for the
SuperSpeed USB data path on USB2
I PCIE
AC coupled off
Module
USB_SSTX2-
US
D9
D10
Additional Transmit signal differential pairs for the
SuperSpeed USB data path on USB2
O PCIE
AC coupled on
Module
USB_SSRX3-
US
C12
C13
Additional Receive signal differential pairs for the
SuperSpeed USB data path on USB3
I PCIE
Not supported
USB_SSTX3-
US
D12
D13
Additional Transmit signal differential pairs for the
SuperSpeed USB data path on USB3
O PCIE
Not supported
3.4.2.
PCI Express x1
Signal
Pin # Description
I/O
PU/PD
Comment
P
PCIE_TX6-
D19
D20
PCI Express channel 6, Transmit
Output differential pair.
O
PCIE
Not
supported
P
PCIE_RX6-
C19
C20
PCI Express channel 6, Receive
Input differential pair.
I PCIE
Not supported
P
PCIE_TX7-
D22
D23
PCI Express channel 7, Transmit
Output differential pair.
O
PCIE
Not
supported
P
PCIE_RX7-
C22
C23
PCI Express channel 7, Receive
Input differential pair.
I PCIE
Not supported
Summary of Contents for cExpress-AL
Page 8: ...2 Introduction This page intentionally left blank ...
Page 36: ...30 Pinouts and Signal Descriptions This page intentionally left blank ...
Page 44: ...38 Module Interfaces This page intentionally left blank ...
Page 48: ...42 Smart Embedded Management Agent SEMA This page intentionally left blank ...
Page 88: ...82 BIOS Setup This page intentionally left blank ...
Page 98: ...92 BIOS Checkpoints Beep Codes This page intentionally left blank ...