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- Newsgroups: comp.sys.intel
- Path: sparky!uunet!mcsun!sun4nl!dutrun!dutiws!wiltinkm
- From: wiltinkm@dutiws.twi.tudelft.nl (M. Wiltink.a73A.telnr-015-138378)
- Subject: Re: id in parts
- Message-ID: <BzAww5.CGD@dutiws.twi.tudelft.nl>
- Organization: Delft University of Technology
- References: <1992Dec11.155227.28583@ichips.intel.com>
- Date: Tue, 15 Dec 1992 12:48:05 GMT
- Lines: 32
-
- In article <1992Dec11.155227.28583@ichips.intel.com> rminemie@sedona.intel.com (Ronald Minemier) writes:
- >
- >i dont know if this is what you are asking about but there is a
- >JEDEC standard for internal part identification that has been in
- >use for years. There is usually a manufacture's ID, Device ID,
- >and stepping field used. All intel micr0-controllers have used this
- >and i believe most other Intel parts.
- >
- >i'm not a processor guy, but clearly the data book shows for 386
- >devices that the EAX register holds the part ID just after self-test
- >is complete...
- >--
- > Intel, Corp.
- > 5000 W. Chandler Blvd.
- > Chandler, AZ 85226
-
- That's different. This is a component TYPE identification. A 386 has a 3 in
- some register while a 486 has 4. Also, different updates of the 386 (I'm
- mostly familiar with the 386) have different stepping numbers in some register.
-
- As far as I know, but I don't know and that basically means nothing, 80x86
- processors have no code anywhere except maybe on the housing that enables you
- to tell the n'th chip produced from the (n+1)'th chip, or any other chip from
- the same line.
-
- ---------------------------------------------------------------------------
- wiltinkm@dutiws.twi.tudelft.nl
- Maarten Wiltink
-
- Department of Applied Mathematics and Computer Science
- Delft University of Technology
- The Netherlands
-