30 Sep
2001
30 Sep
'01
11:15 p.m.
At 11:07 PM 9/30/01 -0600, you wrote:
The
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.
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Carlos E. Murillo-Sanchez carlos_murillo(a)nospammers.ieee.org