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The DP83867 Dual-Port TSN PCIe Application Interface Card plugs into the Intel Tiger Lake or Alder Lake
reference design through the PCIe interface connector. This is an easy way to evaluate the functionality of the
DP83867 Ethernet PHY with the Intel CPU reference design.
Note that the PCIe interface connector is used only as a form factor and uses proprietary interface signal
assignment as given by the Intel reference design. The PCIe form factor carries the SGMII signaling for two
Ethernet ports, MDIO/MDC, power supply and control signals.
The AIC supports MDIO access via dedicated a SMI interface over the PCIe interface. The two DP83867 PHYs
use different MDIO addresses to be addressed via the common interface.
For easy testing and development purpose, the AIC card supports several pin headers for signal probing.
The AIC uses the two RJ45 jack LEDs to show PHY link and speed indication with one LED, and PHY data
transfer activity with the second LED.
The AIC card supports resistor and capacitor mounting options to deploy DP83869 Ethernet PHY
instead of DP83867 on each Ethernet interface port by using the same PHY footprint on the PCB.
1.2 Hardware Features
DP83867 Dual-Port TSN PCIe Application Interface Card features:
•
Two DP83867 Gbit Ethernet PHYs
•
Two port SGMII MAC interface
•
Common serial management interface (SMI) with MDIO/MDC signals to access both DP83867 Ethernet
PHYs
•
Two RJ45 jack connector with integrated magnetics
•
Two LEDs in each RJ45 jack giving status information for different PHY operation modes
•
On-board power generation for all PHYs, sourced by 5 V power supply through the PCIe connector
1.3 Software Features
•
All Ethernet PHY MDIO registers can be accessed via PCIe interface.
– DP83867 on Ethernet port 1 has MDIO address #0
– DP83867 on Ethernet port 2 has MDIO address #1
SNLU317A – SEPTEMBER 2022 – REVISED MAY 2023
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DP83867 Dual-Port TSN PCIe Application Interface Card
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