Re: Apple ][ Peripheral Cards [Old] - a few questions

[dempson@swell.actrix.gen.nz (David Empson)]

In article <2beuaa$n00@wraith.cs.uow.edu.au>
david@wraith.cs.uow.edu.au (David E A Wilson) writes:
>
> 	Does anyone have a genuine PPIC and does it match the code in the
> 	manual?

I have a manual, but don't think I have a card to go with it.

> 3)	Between the Communications Interface Card (CIC) and the Super Serial
> 	Card (SSC) Apple released one (or two?) serial cards called the
> 	(High Speed) Serial Card. What type of ACIA did they use and what
> 	functions did they have (baud rates, commands etc) and were there
> 	two or only one?

They did release a card called the "Apple II Serial Interface Card".
Again, I have the manual (from a Taiwanese clone) but no card.

According to the manual, it doesn't have an ACIA at all - it does all
serial<->parallel conversion and timing in software.  I can't follow
the circuit too well - it is a rather bad copy of an Apple manual.

The only chips it mentions are a couple of PROMs, a 74LS365 (hex
three-state bus driver), 74LS109 (dual J-K flip-flop), 74LS125 (quad
three-state bus driver) and lots of transistors, diodes and resistors.
The picture of the card agrees with this.
-- 
David Empson                                                               
dempson@swell.actrix.gen.nz                                                
Snail mail: P.O. Box 27-103, Wellington, New Zealand