Z8530 (was Re: Navtel 9460 Protocol Analyzer info?)

Brad Parker brad at heeltoe.com
Fri Apr 15 09:15:01 CDT 2005


Ethan Dicks wrote:
...
>> despised the 8530.  I took the liberty of handing him a copy of the
>> NetBSD code for the chip, which I think helped him understand it a
>> little better.

heh.  hope my name isn't anywhere in that :-)

don't know a thing about it.  nope.  never heard of that localtalk thing. :-)

in the early days of macbsd there was problem emptying the 8530's fifo
(only 3 bytes) which was solved by using a simple version of soft irq's
(which have other names in other os's but the concept is the same).

pretty veratile chip.  not bad once you got used to it.  difficult to
use w/dma hardware, however.

-brad



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