Path: utzoo!mnetor!uunet!lll-winken!lll-lcc!ames!ncar!oddjob!uwvax!puff!avery
From: avery@puff.cs.wisc.edu (Aaron Avery)
Newsgroups: comp.sys.amiga
Subject: Re: My Amiga has a retarded brother...
Message-ID: <1598@puff.cs.wisc.edu>
Date: 23 Apr 88 01:16:17 GMT
References: <320@uwslh.UUCP>
Reply-To: avery@puff.WISC.EDU (Aaron Avery)
Organization: U of Wisconsin CS Dept
Lines: 20

In article <320@uwslh.UUCP> lishka@uwslh.UUCP (Christopher Lishka) writes:
>I've heard a rumor that Amiga keyboards (at least for the 1000)
>actually have a 6502 in them.  Which would almost make them as
>powerful as my VIC (ahh, yes but my VIC *DOES* have 3k of memory and a
>graphics chip!).  Is there any truth to this, or have I been
>misinformed? 

Well, close. Here's the scoop:

The keyboard processor is a Rockwell/NCR/MOS Technologies 6500/1. It contains
2K bytes of ROM, 64 bytes of RAM, and 4 I/O ports of 8 bits each. It also has
a 16bit timer and edge detect capability on two of the I/O lines. It has a 
built-in crystal oscillator which is run at 3.00MHz.

This is reprinted without permission from the 1.0 Hardware Manual. They 
probably don't care anyway, if the 500 and 2000 keyboards are very different
from this spec.

-- 
Aaron Avery (avery@puff.cs.wisc.edu)
	    ({seismo,caip,allegra,harvard,rutgers,ihnp4}!uwvax!puff!avery)