My question is pretty easy: what is the difference (on Arduino Uno) between the 6 ICSP pins (GND, VCC, MISO, MOSI, SCK, SS) and the SPI pins (digital I/O pins 11, 12, 13 and SS pin (normally pin 10)) ? Is there even a difference?
I need to know this to be sure if i can still use the digital pins even if the ICSP pins are connected to an external device.