Date   : Sat, 17 Mar 1990 17:52:07 GMT
From   : pilchuck!dataio!shiloh!fnx!del@uunet.uu.net (Dag Erik Lindberg)
Subject: Need info on 5832 and 58321 clock chips

In article <85.25fe1792@iowasp.physics.uiowa.edu> syswtr@iowasp.physics.uiowa.edu
writes:
>In article <847@gold.GVG.TEK.COM>, grege@gold.GVG.TEK.COM (Gregory Ebert)
writes:
> If you are building your own hardware, the 5832 has very slow access 
>time.  A 4 Mhz Z80 will probably not be relaible when reading/writing the
>5832.  A slower processor (i.e. 2.5 Mhz) may work...

Isn't this why wait states were invented? If you are designing your own
hardware, or in any properly designed hardware, the speed of the peripheral
chip is unrelated to the reliability of operation, only to the performance.
This is something that has largely been forgotten in the @#$%^ Clone world.
Used to be, on systems where different CPU clock speeds were likely to be
encountered, there would be a jumper on each add in board to set the wait
states for that board, to match it to the processor speed. If this practice
had not been dropped with the Big Blue Box there wouldn't be all the
problems of finding peripherals that work at the new, higher clock speeds.
But that's another story in another news group.


-- 
del AKA Erik Lindberg