23 Apr
2007
23 Apr
'07
4:29 p.m.
The question on junkbox z80 systems made me remember that
old 386 and 486 system besides providing a raft of 32kx8 SRAMS
also had a keyboard interface chip..
I have a few salvaged 8742(smae as 8242) from PC hardware
of the AT class 80386-486 level.
Without resorting to eraseing the Eproms (8742) and reprogramming
them I've wondered if..
Can these parts (PC AT keyboard interface) can they be used for
small system as a interface from AT or PS2 keyboard to a 8bit micro.
Right off I suspect yes. However is there any information on how
to "talk" software wise to them as to what kind of results and
commands they take?
Allison