hello im trying to make a usb receptacle for my microcontroller, im planning to use USB Type C, Although i only need USB 2.0 functionality i might as well design it to specification so that the mCu will work on any computer and any* possible cable configurations most importantly USB C - USB C and USB A-USB C.
The receptacle i have is a 16pin(12 legs) one, I have shorted the redundant pins such as GND, VBUS, D- and D+. But i dont know what to do with SBU1, SBU2, CC1, and CCC2. What should i do to those pins? I would also want that the board will work with USBC PD power supplies. The board only needs the standard 5v 1A (500mA is fine).
I have read that CC needs a pull resistors but i do not know the exact value, or is it best just to leave it floating? Does the USB specification what to do on devices only needing USB2.0 functionality but is using a USB C receptacle?