SPRUIM6A October 2018 – November 2020
The x2 lane PCIe daughter card includes one x4 lane PCIe connector J15 to accept PCIe form factor daughter cards and support PCIe Gen3 operation. The pin-out of the x1 lane connector follows PCIe standard. MCU_I2C is used for control. The link activation signals (WKUP) from the PCIe connectors are terminated to the SERDES connector, which is used to interrupt the processor in the processor board.
Reset: a 3-pin header J14 is provided to select the reset source for the host and end-point PCIe operation. Short pin 1 and pin 2 of the header J14 for device operation of the PCIe card, or short pin 2 and pin 3 for host operation of the PCIe card.