7 Jul
2006
7 Jul
'06
6:21 p.m.
On 7/8/2006 at 12:58 AM ard at p850ug1.demon.co.uk wrote:
Yes, I know about the bidirexctional mode (Mode 2
IIRC). But to use that
in a lot of cases is a kludge too. Personally I'd rather link a 6522 or
similar to the ISA bus.
Tony, I know that you hate the 8255, but the streets are paved with them,
whereas the 6522 is a little harder to get one's hands on. Even the Z80
PIO is not easy to find new.
Mode 2 for the data lines should work just fine on an 8255.
Cheers,
Chuck