Re: 6545 = 6845 ???

From: Richard Atkinson (
Date: 1999-04-20 19:45:39

On Tue, 20 Apr 1999, Ruud Baltissen wrote:

> Has anyone an idea of the confusing behaviour of the original 6845 
> versus the Hitachi 68B45 ???

There are some differences between versions of the 6845, depending on
whether the machines they were 'intended' for (ie. what that particular
manufacturer had in mind) had seperate READ# and WRITE# lines (as on the
Z80) or a single R/W# line (6502). The Amstrad CPC sites have details on
this, referring to them as CRTCs of version 0, 1 or 2.


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