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From: welland@cbmvax.UUCP (Bob Welland)
Newsgroups: comp.sys.amiga
Subject: Commodore 68020
Message-ID: <2720@cbmvax.UUCP>
Date: Tue, 10-Nov-87 20:24:59 EST
Article-I.D.: cbmvax.2720
Posted: Tue Nov 10 20:24:59 1987
Date-Received: Fri, 13-Nov-87 05:47:31 EST
Reply-To: welland@cbmvax.UUCP (Bob Welland)
Distribution: na
Organization: Commodore Technology, West Chester, PA
Lines: 52

References:



I was dissapointed to see that no one who was at the  COMDEX
show reported on the Commodore 68020 board for the A2000. It
was shown in the booth by Dave Haynie (he and  I  where  the
designers). It has some nice features !


CPU, speed      68020, 14.2     Speed in Mhz

FPU speed       14.2, 20, 25    Speed in Mhz
(68881)                         Faster speeds are optional

MMU             Yes             Wonder what this is for ?
(68851)

RAM option      0, 1M, 2M       Numbers in bytes

RAM width       32 bits

RAM cycle       350ns           70ns of the
time                            time is due to the
                                68851 MMU chip.

RAM expansion   Yes
on-board?

RAM is          Yes
auto-config?

Boot ROM's      Yes             64K bytes


A few notes:

The RAM is auto-config so it can be DMA'ed to etc ...

The on boot ROM takes over the system and  so  it  can  play
nice  games before handing things over to AmigaDos (or not).
The 68881 has an optional crystal  that  can  provide  clock
rates  greater  then  14 Mhz (for those floating point junk-
ies). The RAM speed has 2 wait states (one is from  the  MMU
and one is from the DRAM refresh arbitration).

We where showing the board running Sculpt 3-D.

Price and delivery have not been established as of yet.

                                        Robert Welland


All of the above opinions above are mine  ...  they  do  not
represent Commodore in any way.