Take a look at the Uno schematic ICSP 1 and 3 are tied to MOSI and MISO. Pin 5 goes to reset, so I think you must have meant pin 3. Pins 11 and 12 also the MOSI and MISO lines and are connected to ICSP 1 and 3.
Take a look at the Uno schematic ICSP 1 and 3 are tied to MOSI and MISO. Pin 5 goes to reset, so I think you must have meant pin 3. Pins 11 and 12 also the MOSI and MISO lines and are connected to ICSP 1 and 3.