Re: Questions about IWM

[russotto@grace.speakeasy.net (Matthew Russotto)]

In article <44393789$0$11072$9b4e6d93@newsread4.arcor-online.net>,
Linards Ticmanis  <ticmanis@gmx.de> wrote:
>PZ wrote:
>> The IWM Disk II was never released because the original Disk II
>> controller was simply cheaper to produce at the time.  I believe that
>> the Apple Universal Controller likewise was never released, however
>> more might have gotten out than the IWM Disk II.
>
>One Question remains, would the Universal Contoller be easier to clone 
>than a Superdrive card? I'm talking about a quantity of one and 
>wire-wrapping, not about a production run.
>
>IWM chips should be not too hard to obtain from some old Mac corpse, 
>right? Does the card contain other hard-to-get custom chips as well?

Looks like it's an IWM, a 74LS245 (octal buffer), and a "6309".  I
assume that's not the Hitachi CPU but a PROM.  Not much to it, then.

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