[comp.sys.mac.misc] GPi pin

tbandit@athena.mit.edu (Carlos E Reategui) (04/01/91)

I was reading the Technote #286 on the GPi (General Purpose Input) and was
interested in finding out what voltage level is necesary for the GPi to go
high.  Anyone out there know?

Also, is there a simple way to time something with more presision than
tickcount? Is it posible to get access to the 3.762MHz internal serial clock?

Please respond by email, also let me know if this is the right place to 
ask this and if not let me know where for the next time.

Thanks,
Carlos
tbandit@athena.mit.edu