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Re: CGA video for Apple III or IIc
- Subject: Re: CGA video for Apple III or IIc
- From: dempson@actrix.gen.nz (David Empson)
- Date: 1997/03/21
- Newsgroups: comp.sys.apple2
- Organization: Empsoft
- References: <5gidgj$adl@ecom2.ecn.bgu.edu>
Shawn T Beattie <mustb5@uxa.ecn.bgu.edu> wrote:
> Is the III video port really the same pinout as the GS video port?
Very similar, but not identical. I could look up the exact details, but
the obvious differences are:
1. The IIgs has no intensity output (CGA has four signal lines - red,
green, blue and intensity).
2. The IIgs colour signals produce an analog voltage instead of a TTL
level.
--
David Empson
dempson@actrix.gen.nz
Snail mail: P.O. Box 27-103, Wellington, New Zealand