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- Newsgroups: comp.sys.mac.programmer
- Path: sparky!uunet!zaphod.mps.ohio-state.edu!darwin.sura.net!wupost!csus.edu!netcom.com!leonardr
- From: leonardr@netcom.com (Leonard Rosenthol)
- Subject: Re: Which SCC in Macs
- Message-ID: <1992Nov19.190742.11865@netcom.com>
- Keywords: Z85C30?, SCC, Zilog
- Organization: Netcom - Online Communication Services (408 241-9760 guest)
- References: <1992Nov19.165647.11318@informatik.uni-bremen.de>
- Date: Thu, 19 Nov 1992 19:07:42 GMT
- Lines: 24
-
- In article <1992Nov19.165647.11318@informatik.uni-bremen.de> g16m@alf.zfn.uni-bremen.de writes:
- >Maybe at least somebody knows if the SCC from Zilog is the Z85C30 and how and
- >where the registers are mapped into the memory.
- >
- Depends on which member of the Macintosh family you are working with.
- Some use the Z8530 (which was the original SCC used), however with newer
- models there could be additional IOP (like the IIfx & Quadras have) or their
- could be a "Combo Chip" whihc handles not just the SCC functions but also
- things like ADB or SCSI. You will also find that some (like the Duo's)
- don't even have a "real" SCC, they do things via a DSP chip.
-
- >Probably that stuff is
- >described in "The Macintosh Family Hardware Manual" or the Mac SE Deveoper
- >Notes, but I couldn't get my hands on that stuff yet.
- >
- That's exactly where it is.
- Try you local technical book store or call APDA!
-
- --
- -----------------------------------------------------------------------------
- Leonard Rosenthol Internet: leonardr@netcom.com
- Director of Advanced Technology AppleLink: MACgician
- Aladdin Systems, Inc. GEnie: MACgician
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