Intel® 500 Series Chipset Family On-Package PCH Datasheet Volume 1

Datasheet

ID 631119
Date 13/07/2021 00:00:00
Public Content
Document Table of Contents

PCH-LP (UP4)

Flexible HSIO Lane Multiplexing in PCH-LP (UP4)

Note:Flexible HSIO Lanes [5:4] are not available on PCH-LP (UP4).

The ten Flexible HSIO Lanes [11:6, 3:0] on PCH-LP (UP4) support the following configurations:

  1. Up to ten PCIe* Lanes
    • A maximum of five PCIe Root Ports (or devices) can be enabled
      • When a GbE Port is enabled, the maximum number of PCIe Root Ports (or devices) that can be enabled reduces based off the following:

        --> Max PCIe Root Ports (or devices) = 5 - GbE (0 or 1)

    • PCIe Lanes 1-4 (PCIe Controller #1), 7-8 (PCIe Controller #2), and 9-12 (PCIe Controller #3) must be individually configured.
  2. Up to four USB 3.2 Gen 1x1/2x1 Lanes
    • A maximum of four USB 3.2 Gen 1x1/2x1 Ports (or devices) can be enabled.
    • USB 3.2  Gen 1x1 = 5 GT/s
    • USB 3.2  Gen 2x1 = 10 GT/s
  3. Up to three GbE Lanes
    • A maximum of one GbE Port (or device) can be enabled.
  4. Un-used USB 3.2/PCIe and SATA/PCIe Combo Port Lanes must be statically assigned to "Disabled" through their Combo Port Soft Straps discussed in the SPI Programming Guide using the Intel Flash Image Tool (FIT).