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- Path: sparky!uunet!mcsun!julienas!enst!inf.enst.fr!elendir
- From: elendir@inf.enst.fr
- Newsgroups: comp.sys.atari.st
- Subject: 030 sync cycles (was : A1200 versus Falcon 030 once again)
- Keywords: STERM
- Message-ID: <1982@enst.enst.fr>
- Date: 22 Jan 93 09:47:48 GMT
- References: <H.6a78NGVZTA2@fredrik.atari.no>
- Sender: news@enst.enst.fr
- Lines: 15
-
- Joern Moe writes
- ] In the falcon they use sync
- ] mode on a 16 bit bus. This gives a 4 clock cycle for each longword
- ] access to the bus. This implies a 25% reduction in performance, not 50%.
-
- That is wrong. Synchrone cycles on the 68030 (i.e. those terminated by STERM
- rather than DSACK) must be 32-bit wide. Refer to the 030 User s Manual. There
- is no other way than DSACK to end a 16-bit wide exchange.
-
- Vincent.
-
- --
-
- In memoria di mori di Furiani.
-
-