21 Jan
1999
21 Jan
'99
12:13 a.m.
> What about a 65816 (with 32 Bit data bus)
> using a 486 chipset
No, the 65816 only has a 16-bit data bus. There was
talk about a
32-bit version, but that's all it was, talk.
Of course I know that the 65816 has a 16 Bit data bus. It was
just a nice idea of having a 65816 with a 32 Bit BIU to fit
still available 486 chipsets (with PCI etc.) to get a kind
of an up to date 'SuperApple' (Imagine, an Apple II type
computer with an ERAZOR II graphics card :))
In fact, this idea isn't so far from reality, since WDC offers
the 65816 as lib module for several design pathes. So, put it
in a fast, big (F)PGA together with 32 Bit glue logic and add
a last generation 486 chipset for memory and I/O controll,
including ISA and PCI bus (question: is there a 486 chipset
with AGP ? Just for the couriosity :). 10 MHz should be possible
with no problem, more possible, but I don't know the gate
structure of the 816 - 20 or more MHz are imaginable with
modern (F)PGA chips.
Just an idea :)
Gruss
H.
--
Ich denke, also bin ich, also gut
HRK