user7572: I am connecting an RFID reader to my Arduino mega.  The directions that I have found say that I need to use pins 50-53.  I also noticed that the ICSP header contains (what looks like) a secondary connection to these pins: 
http://arduino.cc/en/Reference/SPI
Can I connect my RFID reader to the ICSP header:

user2881: Yes you can. However the SS isn't present on that header. You can however use any pin you want for SS (if the library you use supports it, that is)

7572: <p>I am connecting an RFID reader to my Arduino mega.  The directions that I have found say that I need to use pins 50-53.  I also noticed that the ICSP header contains (what looks like) a secondary connection to these pins: </p>

<p><a href="http://arduino.cc/en/Reference/SPI" rel="nofollow">http://arduino.cc/en/Reference/SPI</a></p>

<p>Can I connect my RFID reader to the ICSP header:</p>
 2881: <p>Yes you can. However the SS isn't present on that header. You can however use any pin you want for SS (if the library you use supports it, that is)</p>
