Re: TWGS Upgrade question

[fmlin@netcom.com (Frank M. Lin)]

Following stolen from AppleWorks Forum's May 1991 issue:

"In addition, current 65C816 chips cannot execute certain instructions
reliably when operating beyond 4 MHz; circuitry on the TWGS intercepts
those instructions and allows extra time for their exectution.  However,
when you reach 10 MHz, additional instructions do not execute reliably
in 16-bit mode.  The TWGS does not intercept these instructions unless 
you use a revision E or later TWGS 3 GAL."

As you can see, it might run fine still.  Also maybe when Sanyo re-
engineered the chip, it fixed some of the problems.  So you might
actually be running at "faster" speeds than those of us with 3E GALs.

-- 
frank m. lin
fmlin@netcom.com