still 65802 problem

[a0m2504@zeus.tamu.edu (AKITOMO MORITA)]

Well, no one has answered my question sufficiently so I'll give some more 
details.  The RANA Elite Hard drive came out over ten years ago so I would
say it is Apple ][ compatible.  It works fine in my ENHANCED Apple //e with
a NCR 65C02.  It will not work with a WDC 65C802.  I know the problem is
related to a timing problem since I took a logic probe to the board that
interfaces to the card.  Basically, the card uses C0F0-C0FF (when in 
slot 7) to select either a 1k ROM or one of 7k RAMs (8 total possibilities).
It uses just the last three bits of the address line to select one of these 
using a 74ls138 3-to-8 decoder.  It also uses 3 of the 74ls75's 4 D-FF to
hold the current selection.  The problem is that the D-FF's are holding the
wrong number.  I cannot trace the problem back toward the edge connector
since the traces go under several IC's which I do not wish to take the time
to desolder and solder back on later.  The ROM on the card is slot 
independent and written for a 6502 (not a 65c02, I know this since I can
disassemble it with the ROM monitor which cannot disassemble newer 65c02 
instructions).  In case you're wondering, the WDC 65c802 is rated for 6Mhz,
but this doesn't mean kaka since the computer will only run a 1.023 Mhz.
I have the data sheets for a WDC 65C02, a WDC 65C802/816, and in the 
Apple //e technical reference, a NCR 65C02.  I am not familiar enough with
timing diagrams to be able to tell if the problem is a difference in timing
between a NCR 65C02 and a WDC 65C802.

What I want is any news of anybody experiencing trouble one they replaced a
65C02 with a 65C802.  I don't care about who manufactured them, I want to 
know about the problems anyway.  OR if anybody familiar with timing diagrams
could tell me if it IS a timing problem between a NCR 65C02 and a WDC 65C802.

Now, what I don't want are rumors, suggestions, or guesses.  No offence to
anybody, but I want to know what the problem IS, not what it could be.

One more thing, the 65C802 upon power up starts in emulation mode (E=1) and
I put it in emulation mode and tried the Hard Drive (just in case) and it 
still does not work.

Thanx if you can help me,
Akitomo Morita
a0m2504@zeus.tamu.edu