Subject: clock frequencies
To: None <port-mac68k@netbsd.org>
From: Kevin Diggs <kevdig@hypersurf.com>
List: port-mac68k
Date: 12/21/2003 11:19:57
Hi,
I am playing with the delay loop. Are there a few set frequencies that
the processors run at?
I have heard of the following:
68020: 12.5, 16, 20, 25 (80, 62.5, 50, 40)
68030: 16, 20, 25, 33, 50 (62.5, 50, 40, 30.3, 20)
68040: 25, 33, 40 (40, 30.3, 20)
Anything missing? Any of these not used?
Anyone know what the accuracy is? My Quadra 700 seems to be around 24.8
MHz. This is 0.8% off.