Re: Pullup resistors (Was: Commodore joystick ports)

From: Marko Mäkelä (
Date: 2007-05-09 22:15:15

On Wed, May 09, 2007 at 12:07:42PM -0500, Jim Brain wrote:
> Can you point to some documentation, as I just checked the AVR 
> datasheet, and PIN is read-only:
> PORT=0,DDR=0 is input, HiZ
> PORT=1,DDR=0 is input, pullup
> PORT=X, DDR=1, X is output.
> Are you talking about a different uC, or the some MOS part?

Sorry, I was writing from memory.  I haven't done any AVR programming
for maybe a year.  You're right and I was wrong.  I should have
consulted some AVR data sheet first.


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