[Coco] Subject: Re: Sound Pak Modification Question

[Willard Goosey]

On Sat, Dec 13, 2014 at 12:23:17PM -0800, tim lindner wrote:
> The PSG (AY-3-8913) is also tied to the CoCo's clock. Since it is
> running twice as fast, the pitch of it's output is doubled in
> frequency.

IIRC the AY chip is actually fed 2*E-clock, and the switch added by
the ssc_hack lets you select rather it gets E-clock (for 2MHz) or
2*E-clock (for 1 MHz).

Willard
-- 
Willard Goosey  goosey at sdc.org
Socorro, New Mexico, USA
I search my heart and find Cimmeria, land of Darkness and the Night.
  -- R.E. Howard