Dave Turner wrote:

>Hey
>
>I have got a very strange RA3 pin.  It is being used as an output,
>with an LED connected.  I am using a PIC18F1320.  For some reason, the
>LED on RA3 always stays off, but, and this is the strange part, when I
>press the active low switch on RB0, the LED works normally.  I have
>checked nothing in my code is referencing porta,3, and the hardware is
>fine.  BTW, I'm using the PICDem 4 board, and a MPLAB ICD2 as a
>programmer.
>
>--
>
>All us base are belong to you.
>
>  
>
I had that same problem with the 16F676, I found out from the datasheet 
that RA3 happens to be input-only.
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