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- Newsgroups: comp.sys.amiga.hardware
- Path: sparky!uunet!decwrl!csus.edu!netcom.com!chet
- From: chet@netcom.com (Eric Chet)
- Subject: Re: Vxl Ram*32 fpga question
- Message-ID: <ny7mdlb.chet@netcom.com>
- Date: Sat, 15 Aug 92 17:33:00 GMT
- Organization: Netcom - Online Communication Services (408 241-9760 guest)
- References: <1992Aug7.094356.27902@rdg.dec.com> <1933@kluge.fiu.edu>
- Lines: 46
-
- In article <1933@kluge.fiu.edu> xnybpf01@serss0.fiu.edu (Brian P Feeny) writes:
- >
- >
- >
- > I am thinking of buying an '030 accelerator for my A500. I was wondering
- >what the major differences between the CSA mega midget and the VXL*30 are?
- >I have heard that the VXL is a piece of junk. Does it have an MMU, FPU,
- >CoPrc or a provision for any of these? Is it about the same compatibility
- >as CSA's? What are some pros/cons............thanks.
- >
-
- I have a VXL30 50Mhz 68030 with MMU, 50Mhz 68882. RAM32 expansion
- board with 2Megs of BURST'able 32bit ram, The ram is auto-configed
- in the amiga 8Meg space so the WHOLE OS is in 32bit ram.
- I'm useing 256k x 4 fast page 60ns ram chips, with 1Meg x 4 chips
- the RAM32 can hold 8Megs of memory.
-
- Why to get a VXL over a MMR CPU max 50Mhz FPU max 60Mhz. The 32bit
- ram will auto-config so it is DMA'able no harddrive(DMA) slow down
- accessing 32bit RAM. The 32bit ram supports 68030 BURST access.
- Also sence the the 32bit ram auto-configs the WHOLE OS is placed
- in 32bit ram from startup.
-
- >
- > Also, how much 32 bit memory can you add to a VXL and where does it ad
- >onto? (i.e. an exp. board, CPU, etc). Also what is its ceiling.
- >
- > Brian Feeny
- >
- >
- >
- >
- >--
- >
- >----------------------------------------------------------------------------
- >Brian Feeny - Systems Programmer - UNIX System Security Specialist
- > __
-
-
- --
- ~
- /**************************************************************************
- * Eric Chet | Amiga does it better
- * chet@netcom.com | Ray Tracing and other graphics techniques
- * BIX: chet | "Use what is useful, simply to simplify"
- */
-