View Single Post
Old 15 September 2014, 09:45   #2
Jope's Avatar
Join Date: Jul 2003
Location: Helsinki / Finland
Age: 37
Posts: 6,360
Send a message via Skype™ to Jope
The clock port is memory mapped io, you need address decoding and a chip that provides you a register you can write to in order to be able to use it as GPIO.

If you want a pre-provided TTL GPIO port, use the printer port, like everyone on every computer did in the 80s/90s.

8-bit C= users used the user port for the same purpose.
Jope is offline  
Page generated in 0.06741 seconds with 9 queries