Re: 8088 and 610 saga continues...

Date: Mon, 24 Jan 2011 22:04:36 +0100
Message-ID: <>
Hallo Michał,

> but they are not refreshed?

Just an idea: it is possible that something goes wrong during the 
refresh. DRAM is read/written by first negating RAS and then CAS 
(plus offering a part of the address of course). Refreshing is done 
by only negating RAS. 

Imagine that something goes wrong during the refresh and CAS is 
activated as well for one or another weird reason? $A1 end $21 have 
7 bits in common; exactly the number of address lines of a 4116 

   / __|__
  / /  |_/     Groetjes, Ruud Baltissen
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Received on 2011-01-24 22:00:14

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