Re: [stella] FE, 3F, Bankswitching, and Data lines

Subject: Re: [stella] FE, 3F, Bankswitching, and Data lines
From: Adam Wozniak <adam@xxxxxxxxxxxxxxxx>
Date: Wed, 18 Dec 2002 11:05:51 -0800 (PST)
On Wed, 18 Dec 2002, Chad Schell wrote:
> What are you using to generate the timing for when the address lines and 
> data lines are stable?

(not Vern, but here's my guess...)

Assume a rough timing of 1.19 MHz

Watch the address lines for any change.  Assume the first change
is on the rising edge of a clock.
Ignore changes for 420 nS.
Assume the clock falls 420 nS after assumed rise.
Continue ignoring changes for an additional 210 nS.


This should get you close enough.

Will code for food.


Archives (includes files) at
Unsub & more at

Current Thread