Author: Flash/FLC (port277.cvx2-sto.ppp.netlink.se)
Date: 10-05-2001 01:20
Well, the Falcon has a 32 bit CPU, but only
bit 16-32 of the 030īs DATA bus are connected
to the motherboard. Bit 0-15 are left open,
not connected to anything, and thatīs why I
consider it a 16 bit. Is that "very wrong"?
Someone said that the Falc was first built
around an 16MHZ 68000, and the 030 was a last
minute change. I kinda believe that, because
it not only have a 16 bit DATA bus, it also
only have a 24 bit ADRESS bus, just like the
68000 have. ADR bit 25-32 on the 030 are also
left open, and thatīs why the Falc canīt
adress more than 16 MB. Sad, but true...
AND, when I swapped the 16MHZ 030 in my Falc
for a 33MHZ one, I took a close look at the
motherboard to verify that. I can tell that
those pins ARE left open. :( Sorry, mate.
If you donīt believe this, please have a look
at the original schematics for the Falc,
I think they can be DLīed from Wezz.
(else, I can mail it to you :)
BTW, IF the Falc had full 32 bit buses, it
would have been much faster than the TT... ;)
/Flash/
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