Re: MAX Machine PLA equations

From: Gerrit Heitsch <*gerrit_at_laosinh.s.bawue.de*> Date: Mon, 8 Aug 2016 10:57:59 +0200 Message-ID: <1dd5bf8e-8516-1e07-73df-5c4d6245928b@laosinh.s.bawue.de> · gerrit_at_laosinh.s.bawue.de

On 08/08/2016 10:53 AM, Michał Pleban wrote:
> Hello!
>
> Gerrit Heitsch wrote:
>
>> The 6703 is not a PLA as the 82S100, so in theory, MOS could make some
>> of the inpute bidirectional. Like use A15 as an input when the CPU has
>> the bus and drive it high or low when the VIC has the bus.
>
> But it doesn't - see the scope plot, the A15 is sometimes 0 and
> sometimes 1 on VIC access.

The same VIC access? Or are the other inputs to the 6703 different?

  Gerrit

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