Date   : Fri, 26 Nov 2010 01:26:27 +0000
From   : philpem@... (Philip Pemberton)
Subject: Electron Ferranti ULA reverse engineering progress

On 26/11/10 01:13, James McGill wrote:
> Hi Ed,
>
> Can you tell me if it has much about the 1200 baud cassette decoding
> circuitry? This is something I'm interested in understanding, and
> would on its own be worth picking up a copy.

Eight pages on the cassette interface in total -- one 6-page chapter on 
cassette out / speaker, and a few pages about the cassette I/O circuitry 
in the previous chapter.

It's basically a single I/O pin, all the decoding is done in software.

I think the TOC is on Chris's website somewhere... perhaps as part of 
the "sample chapter" PDF?

-- 
Phil.
philpem@...          
http://www.philpem.me.uk/