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Re: Parallel Card

Subject: Re: Parallel Card
From: "mdj" <mdj.mdj@gmail.com>
Date: 25 May 2006 19:26:57 -0700
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Michael J. Mahon wrote:

> I suggested a "direct" parallel port approach because 6522
> hardware is available already constructed and the programming
> is simpler, but there are, of course, many other alternatives.

Sure is, and the device gives you lots of other options to play with as
well.

Every parallel card I have lying around for the Apple II is a 'dumb'
parallel card that implements 8 outputs and a strobe using TTL logic,
plus an EPROM to provide the communications firmware. Still useful, but
crummy compared to a 6522 card.

I guess such cards are still easy to come by, but I admit I've not
really looked.

Matt

Follow-Ups:
- Re: Parallel Card
  - From: "David Wilson" <mcs6502@gmail.com>
- Re: Parallel Card
  - From: "Michael J. Mahon" <mjmahon@aol.com>

References:
- Parallel Card
  - From: "Bryan Parkoff" <none@nospam.net>
- Re: Parallel Card
  - From: "mdj" <mdj.mdj@gmail.com>
- Re: Parallel Card
  - From: "Bryan Parkoff" <none@nospam.net>
- Re: Parallel Card
  - From: "Michael J. Mahon" <mjmahon@aol.com>

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