Re: The 6502 is a dynamic CPU, the Z80 is a static one

From: laughton_at_cyg.net Date: Mon, 04 May 2020 14:33:47 -0400 Message-ID: <3e9ca8c0678d9d4a3d349c9334ebcf25_at_cyg.net>

On 2020-05-04 14:27, silverdr_at_wfmh.org.pl wrote:
>> On 2020-05-04, at 17:38, Jim Brain <brain_at_jbrain.com> wrote:
>> 
>> The original NMOS design relies on the fact that the charge on a wire 
>> will continue to live there for 300nS or so, as part of the operation 
>> of the 6502.  On the 65C02, such things were dumped into flops, to 
>> avoid the issue.
> 
> Does that mean that the C02 can be clocked at arbitrarily slow rate?

Rockwell (and others?) could only be stopped in the Phi2-high phase.  
Modern WDC C02's can be stopped in either phase.

-- Jeff