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Path: utzoo!linus!decvax!decwrl!dec-rhea!dec-dosadi!binder
From: binder@dosadi.DEC (The Stainless Steel Rat)
Newsgroups: net.micro
Subject: Raster graphics display controller chip
Message-ID: <2208@decwrl.UUCP>
Date: Mon, 2-Jul-84 10:51:34 EDT
Article-I.D.: decwrl.2208
Posted: Mon Jul  2 10:51:34 1984
Date-Received: Tue, 3-Jul-84 04:42:26 EDT
Sender: daemon@decwrl.UUCP
Organization: DEC Engineering Network
Lines: 20

I don't recall the requestor, but someone was looking for a raster 
graphics controller chip - the NEC uPD7220 Graphics Display Controller 
may be a candidate.  Some of its features are these:

1.  uP interface, does DMA with 8257/8237 controllers.

2.  Interfaces up to 256K 16-bit words of display memory, 4M pixels.

3.  Light pen input, external video synch input.

4.  1024x1024 display, four planes of colour or grey scale; two in-
    dependently scrollable areas.  1 to 16x zoom.  Panning.

Cheers,
Dick Binder   (The Stainless Steel Rat)

UUCP:  { decvax, allegra, ucbvax }!decwrl!dec-rhea!dec-dosadi!binder
ARPA:  binder%dosadi.DEC@decwrl.ARPA

Posted Monday 2nd July 1984, 10:52 EDT by DOSADI::BINDER