RE: sources of 6529

From: Bil Herd <>
Date: Sat, 16 Jun 2012 13:52:28 -0400
Message-ID: <>
Yep, seemed designed for a whole byte of data in that number of pins. Kind
of glad they didn't try to embed more functionality by any kind of pin
re-use or processor controlled commanding, would have been harder to use
as a TTL'ish part.

-----Original Message-----
[] On Behalf Of Gerrit Heitsch
Sent: Saturday, June 16, 2012 12:11 PM
Subject: Re: sources of 6529

On 06/15/2012 02:55 PM, Bil Herd wrote:
> Yeah it was stock, had them "sent up" within an hour.  The chip makes
> a lot of sense as an IO building block, I guess most systems of the
> day were adding I/O as part of timer/counters VIA'ish  most of the time.

There are some downsides to the 6529:

  - No reset input
  - No data direction register.

Each feature would have meant 1 more pin though.


       Message was sent through the cbm-hackers mailing list

       Message was sent through the cbm-hackers mailing list
Received on 2012-06-16 18:00:24

Archive generated by hypermail 2.2.0.