Where can I find the carrier board schematics?
I wanna design a carrier for UP Core board with POE. I read the "UP CORE Carrier Board Design Guide".
Here are some questions I have.
on page 24, PCIE_CLKREQ0 signal is pulled up to LAN_VDD33. How can it connect to an IO with 1.8V without any transistor?
on page 24, as same as first question on signal PMU_PWRBTN.
on page 24, which pin does drive the LAN_PLTRST_N? I guess this one connect to PMU_RSTBTN_N. But I don't know the direction of signal PMU_RSTBTN_N. All the pins don't have direction in the table "1.0 UP CORE Carrier board Pinout".
I found a product UPC-GWS01 made by AAEON.com. http://www.aaeon.com/en/p/iot-gateway-upc-gws01#downloads
But I don't know where I can buy it.
I need more information on carrier board.