PIC18F4520 connection to 3x3 keypad/LED

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Hello guys, I would appreciate some help regarding PIC18F4520 to 3x3 KP/LED.

I do not need the code as of now. I just need some basic diagram that shows how a 3x3 KeyPad is connected to the PIC and also how an LED can be connected to the PIC.
Is there any difference if I were to connect my 3x3 to either PORTA/PORTB?

I tried to google 3x3 KeyPad to PIC18F4520, nothing came out to be honest. Need some help if its possible. Thanks.
 

Ther eis no special Keypad interfacing to PIC18F4520. Google for 3 X 3 Keypad interfacing and you will get a lot of links. For LED use a current limiting resistor. If you use PORTA which have adc and Comparator functions multiplexed you have to configure ADCON1 and CMCON registers in your code.
 

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Hi dear...
in a new way you can use many keys with one pin of pic...and so you can make your key-pad as you wish...
 

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