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- Newsgroups: comp.sys.m68k
- Path: sparky!uunet!munnari.oz.au!metro!basser.cs.su.oz.au!swift!suite.sw.oz.au!paul
- From: paul@suite.sw.oz.au (Paul Antoine)
- Subject: Re: SC414075 vs 68030
- Organization: Softway Pty Ltd
- Date: 27 Jan 93 22:50:16 GMT
- Message-ID: <paul.728175016@suite.sw.oz.au>
- References: <1993Jan24.200854.21128@ida.liu.se>
- Sender: news@softway.sw.oz.au (Usenet)
- Lines: 37
-
- In <1993Jan24.200854.21128@ida.liu.se> d88nikne@odalix.ida.liu.se (Niklas Netz) writes:
-
- >What is the difference between a SC414075 and an ordinary '030?
- >Is there a difference?
-
- I asked this question over a year ago, and Michael Bodine (hi
- Michael!) from Motorola was kind enough to tell me that it is the
- pre-production prototype of the 50Mhz 68030 (the weird number is one
- the customer is not supposed to see). Motorola chips go through two
- further steps after this: they become XC68030, and finally MC68030
- after they've passed Moto's QA program.
-
- Concerned about possible errata sheets covering bugs in this chip, I
- asked Michael to look for me (the local Moto people are hopeless). He
- discovered that there should be no bugs in the chip, and that it can
- be used as an ordinary 50Mhz '030. One thing to watch out for if you
- use this chip at lower speeds - it needs a very fast rise time on most
- inputs, particularly the clock.
-
- From your other post about '040 pinouts, I would guess that you have
- acquired some '030 boards out of HP Apollo 400 series machines which
- were upgraded to '040s. Note here that the '040 that replaced them
- actually goes on a small adapter board, so the pinout of the plug on
- the '030 board may not be a standard '040 pinout.
-
- Let me know if you have any success with the board - I have
- successfully used the '030s.
-
- Regards,
- Paul
-
- ------------------------------------------------------------------------------
- Paul Antoine, Softway Pty Ltd Net: paul@suite.sw.oz.au
- PO Box 305, Strawberry Hills, NSW 2012, Australia Tel: +61 2 698 2322
- 79 Myrtle St, Chippendale, NSW 2008, Australia Fax: +61 2 699 9174
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