8080 vs. 8080A

From: Carlos Murillo <cmurillo_at_emtelsa.multi.net.co>
Date: Mon Oct 1 06:15:02 2001

At 11:07 PM 9/30/01 -0600, you wrote:
>8085, at least, doesn't require three supplies. I don't know why they wasted
>all those pins on things like the pseudo-serial I/O and all those interrupts.
>Hardly anyone ever figured out how to use them well. It would have been more
>sensible to put the 8 address lines there and save the external latch and the
>strobe for it.

Those irq's are exactly why I liked the 8085. Extremely simple
to use. Appropriate for early embedded stuff.


Carlos E. Murillo-Sanchez carlos_murillo_at_nospammers.ieee.org
Received on Mon Oct 01 2001 - 06:15:02 BST

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