Re: Platinum IIe CPU

["Roger Johnstone" <rojaws@es.co.nz>]

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In article <38E2BBB9.209D@houston.rr.com>, Robert Boucher
<rboucher@houston.rr.com> wrote:


>I had always thought the early IIe series used a 6502 CPU; later series
>used a 65C02 CPU. I recently bought a platinum IIe on ebay that had a
>6503 CPU. Will someone explain the differences?


There are several other chips in the 6500 series. The book I have says the
6503 is a 28 pin version which only has a 12 bit address bus i.e. it can
only address 4KB of memory. This is obviously not what you have! However
different manufacturers have made 6502 chips, and each manufacturer tends to
use slightly different labelling schemes.


Roger Johnstone, Invercargill, New Zealand
http://homepages.ihug.co.nz/~rojaws
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The three most dangerous things are a programmer with a soldering iron, a
manager who codes, and a user who gets ideas.