[net.micro.mac] info about PALs

werner@ut-ngp.UUCP (Werner Uhrig) (11/27/85)

> What I would really like to know, is what's inside the PAL's.  "IM
> Underground" leaves the PAL's as black box's.  And how about what's in
> that IWZ box?  Does anyone have that information??

The October 1985 Issue has a most interesting article addressing exactly
this topic (and which I ran into last night, playing "catch-up" ):

see page 44, "ELECTRICAL MAC - PAL Technology Explained" by Jeff Mitchell.
it explains the different technologies of PLDs (programmabable logic devices),
in general, and the 6 HALs in the MAC in particular.

lucky you asked about it today, tomorrow might have been too late already
for my aging brain .....  ((-:

MacTutor, P.O. Box 846, Placentia CA 92670  (714)993-9939
or at your local MAC-hacker-store (or it doesn't deserve the compliment)