Re: Theorizing: what can be done with DOT clock signal present on C64 expansion port?

From: Gerrit Heitsch <gerrit_at_laosinh.s.bawue.de>
Date: Sat, 6 Nov 2021 19:27:38 +0100
Message-ID: <1f9b663d-cdd1-e6c7-9e07-da5e4cc00262_at_laosinh.s.bawue.de>
On 11/6/21 6:55 PM, Claudio Sánchez wrote:
>> If you can find a chip that needs 7.88mhz on pal and 8.18mhz on ntsc
>> then sure, but you're then just using the DOT clock as a cheap way of
>> getting a clock.
> 
> Well... at first it is. It's a cheap way of getting a clock.
> 
> phi2 pin is AFAIK a copy of what the 6510 gives out to the rest of the 
> system, so when the 6510 gets halted by the VIC-II... is phi2 affected?

No, the 6510 gets halted by the RDY pin, clock is not affected.

  Gerrit
Received on 2021-11-06 20:00:03

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