Reliability power supplies
3.3V digital lines (16 input, 16 output, JTAG, config, reset etc..) should be located in a different layer in respect to the 12V and 5V layer, separated by a ground plane.
3.3V digital lines (16 input, 16 output, JTAG, config, reset etc..) should be located in a different layer in respect to the 12V and 5V layer, separated by a ground plane.