Re: Flaky ZipGS - need help!

[schultp@aa.wl.com (Paul Schultz)]

Mark Miller (mdm@netcom.com) wrote:

: Each new 14MHz 65816 is different.  You need to look at the schmoo
: plot which came with your '816.  It will indicate the frequency at
: which it can operate with respect to different voltage levels.  By
: default you should look at the 5V rating.  The number at the bottom
: of the schmoo plot is the period...to get frequency, take the inverse
: of that number.

According to my schmoo plot it tests out at 13.5MHz with 5V.

: >up. Oh, another piece of info: Its been a while but I remember that
: >the same thing happened at 10 and 10.5 MHz.

: If you are saying that you are unable to reliably run at 10 or 10.5
: MHz even _after_ upgrading your Zip, then you may have an extremely
: low performance 65816.  I was told by WDC that the average 14MHz
: is rated at about 12MHz.

Since my schmoo plot indicates 13.5 MHZ @ 5V this is probably not the
case.

Paul.
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