[Coco] What do people want?

Gene Heskett gheskett at wdtv.com
Wed Dec 17 13:53:59 EST 2014


On Wednesday 17 December 2014 13:45:38 Allen Huffman did opine
And Gene did reply:
> > On Dec 17, 2014, at 12:21 PM, Gene Heskett <gheskett at wdtv.com> wrote:
> > 
> > I think the math and the i/o requirements of the 16550 preclude its
> > us on the coco because one would, due to its number of registers,
> > need $10 bytes of i/o space, which the coco-3 is extremely limited
> > on.
> 
> Rick Uland's Fast232 pak he sold was based on the 16550. Maybe someone
> wants to track him down and see if they can make them again?
> 
> 		-- A

Sounds like a jolly good idea.  I'd almost bet that one of the read only 
registers was used as a write latch, whose decoded output then determined 
which register the next read or write went to? Similar to how the WP-RS & 
WP-II worked to address the 32 registers in that chip?  But I have no clue 
which of the rick Uland's that google would disgorge is our Rick Uland.

Cheers, Gene Heskett
-- 
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US V Castleman, SCOTUS, Mar 2014 is grounds for Impeaching SCOTUS


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