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PCI Express Interface

Specification of the PCI Express Interface

The PCI Express Interface implements a PCIe end-point interface and provides electrical power to the Coaxlink card.

PCI Express end-point type per product
Product Type
1630 Coaxlink Mono 4-lane Rev 2.0
1631 Coaxlink Duo 4-lane Rev 2.0
1632 Coaxlink Quad 4-lane Rev 2.0
1633 Coaxlink Quad G3 4-lane Rev 3.0
1635 Coaxlink Quad G3 DF 4-lane Rev 3.0
1637 Coaxlink Quad 3D-LLE 4-lane Rev 2.0
1638 Coaxlink Quad CXP-3 4-lane Rev 2.0
1629 Coaxlink Duo PCIe/104-EMB 4-lane Rev 2.0

4-lane Rev 3.0 PCIe end-point

Applies to:

The 4-lane Rev 3.0 PCIe end-point:

  • complies with Revision 3.0 of the PCI Express Card Electromechanical specification.
  • supports 1-lane, 2-lane, and 4-lane link width
  • supports PCIe Rev 2.0 link speed (5.0 GT/s with 8b/10b coding)
  • supports PCIe Rev 3.0 link speed (8.0 GT/s with 128b/130b coding)
  • supports payload size up to 512 bytes
  • offers the optimal performance when it is configured for 4-lane PCIe Rev 3.0 link speed (8 GT/s)
  • doesn't support the PCIe Rev 1.0 link speed (2.5 GT/s with 8b/10b coding)

4-lane Rev 3.0 PCIe end-point to PC memory data transfer performance
Parameter Conditions Min. Typ. Max. Unit
Sustainable output data rate 4-lane @ 8 GT/s (PCIe Rev 3.0)   3,350   MB/s
4-lane @ 5 GT/s (PCIe Rev 2.0)   1,700   MB/s

2-lane @ 8 GT/s (PCIe Rev 3.0)

  1,700   MB/s
2-lane @ 5 GT/s (PCIe Rev 2.0)   800   MB/s

1-lane @ 8 GT/s (PCIe Rev 3.0)

  800   MB/s

4-lane Rev 2.0 PCIe end-point

Applies to:

The 4-lane Rev 2.0 PCIe end-point:

  • complies with Revision 2.0 of the PCI Express Card Electromechanical specification.
  • supports 1-lane, 2-lane, and 4-lane link width
  • supports PCIe Rev 1.0 link speed (2.5 GT/s with 8b/10b coding)
  • supports PCIe Rev 2.0 link speed (5.0 GT/s with 8b/10b coding)
  • supports payload size up to 512 bytes
  • offers the optimal performance when it is configured for 4-lane PCIe Rev 2.0 link speed (5 GT/s)

4-lane Rev 2.0 PCIe end-point to PC memory data transfer performance
Parameter Conditions Min. Typ. Max. Unit
Sustainable output data rate

4-lane @ 5 GT/s (PCIe Rev 2.0)

  1,700   MB/s
4-lane @ 2.5 GT/s (PCIe Rev 1.0)   800   MB/s

2-lane @ 5 GT/s (PCIe Rev 2.0)

  800  

MB/s