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- From: jonathan@vinnie.cuc.ab.ca (Jonathan Levine)
- Newsgroups: comp.sys.m68k
- Subject: Motorola Memory (was: What is this thing???)
- Message-ID: <1993Jan10.211316@vinnie.cuc.ab.ca>
- Date: 10 Jan 93 21:13:16 GMT
- Lines: 49
-
-
- Thomas J. Trebisky (tom@afthree.as.arizona.edu) wrote:
-
- : At an auction recently, I purchased an interesting piece of equipment
- : that some Motorola expert may be able to identify for me. It is a big
- : card cage (takes two men to move) with about 20 slots holding cards roughly
- : 2 by 2 feet in size. Manufactured by Motorola as a "memory subsystem"
- : Slots are labeled (left to right):
-
- : F E D C B A 9 8 7 6 5 4 3 2 1 0 ACC -- ECC USER+IO USER+IO USER
-
- : Slots 9 thru 2 are occupied with RAM boards: MMS4311
- : each has 1Meg of RAM in 64k by 1 dynamics
- : each is 1/2 populated (could hold 2Meg)
- : (or maybe it is 2Meg and could be 1Meg)
-
- : ACC slot has a board with a 68A01 with RAM, ROM, and interface logic.
- : ECC slot has a MMS4330 board
- : USER+IO has a MMS3354 prototyping board
-
- : It also has a front panel with a hex keypad, Moto part number MMS3823.
-
- : Again, the crate and the MMSxxxx cards were made by Motorola.
-
- : Surely, all this RAM was not bank switched for the poor little 68A01.
- : What is this thing, anyone know?
- : It is definitely not a VME or Versabus crate.
-
- This is a Motorola System 4000 "Semiconductor Mass Memory for Mobile
- Environments". A successor to the System 3000, Motorola sold this
- "Ruggedized Mass Memory" for "Geophysical Data Acquisition, Radar Data
- Analysis, Communications "Mailbox" Buffers, Medical X-Ray Body Scanners"
- and as "Main Memory Add-on, Intelligent Memory, Disk Replacement, and
- Disk Cache". All this information courtesy Motorola document NP-364-R1
- dated 1983. With the 64K rams you have, the box will hold 32Meg. Using
- 256K devices, the box maxes out at 128Meg, and will move data @80Meg/sec.
-
- If you wish a copy of this four-page "Product Preview", e-mail me your
- fax number.
-
- Good Luck
-
-
- --
- Jonathan Levine: voice 403-686-0473 | Digital Alternatives (Calgary AB)
- fax 403-686-1254 | Virtual Universe Corp. (Calgary AB)
- uucp: jonathan@vort.cuc.ab.ca | Survival Research Laboratories (SF CA)
- ^^^^^^^^^^^^^^^^^^^^^^^
- Please reply to this address. Return address @vinnie is giving us some trouble.
-