Congatec Com Express conga-TC570 - Connector Rows; PCI Express; PCI Express Graphics (PEG); Primary and Secondary Connector Rows

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5 Connector Rows

The conga-TC570 is connected to the carrier board via two 220-pin connectors (COM Express Type 6 pinout). These connectors are broken

down into four rows. The primary connector consists of rows A and B while the secondary connector consists of rows C and D.

5.1 Primary and Secondary Connector Rows

The following subsystems can be found on the primary and secondary connector rows.

5.1.1 PCI Express™

The conga-TC570 offers up to eight PCIe lanes—up to six lanes on the A–B connector and up to two lanes on the C–D connector. The conga-

TC570 supports the following:

• up to 8 GTps (Gen 3) speed

• a 6x1 link default conﬁguration (with SATA ports enabled)

1,2,3 ,

• a 1 x4 + 2 x1 link or 2 x2 + 2 x1 link or 1 x2 + 4 x1 link via a special/customized BIOS ﬁrmware

• lane polarity inversion

Note

PCIe lane 5 and PCIe lane 6 are multiplexed with SATA port 1 and SATA port 0 respectively.

PCIe lane 7 is multiplexed with USB 3.2 Gen 2x1, port 3.

The number of PCIe lanes increases if the multiplexed ports are not enabled.

5.1.2 PCI Express Graphics (PEG)

The conga-TC570 supports one PCIe x4 Gen 4 (PEG) port on the C–D connector. The port supports both graphics and storage devices and

can be operated as x1 or x4 link.

Note

The PEG lanes can not be linked together with the PCI Express lanes in section 5.1.1 “PCI Express™”.