15 Apr
2005
15 Apr
'05
7:26 a.m.
Subject: Re: Z8530 (was Re: Navtel 9460 Protocol Analyzer info?)
From: Brad Parker <brad at heeltoe.com>
Date: Fri, 15 Apr 2005 10:15:01 -0400
pretty veratile chip. not bad once you got used to it.
difficult to
use w/dma hardware, however.
I find that odd as the 8530 had on board DMA. I have a tube of them
in the PLCC package and fine them not only fast but fairly similar
to the Z80 SIO. Now thats not to say the Z80sio wasn't pita to
program either. The only other beast out there like the SIO was the
NEC MPSC or 7201 (SS as I8274), that was a sio for 808x busses and
also a pain to program for.
Allison