Path: utzoo!attcan!utgpu!jarvis.csri.toronto.edu!mailrus!tut.cis.ohio-state.edu!pt.cs.cmu.edu!andrew.cmu.edu!aw0g+
From: aw0g+@andrew.cmu.edu (Aaron Wohl)
Newsgroups: comp.sys.mac.programmer
Subject: Re: 8530 SCC access
Message-ID: <EZMKA6W00WBMM0i10w@andrew.cmu.edu>
Date: 15 Nov 89 13:22:14 GMT
References: <2571@ucsfcca.ucsf.edu>
Organization: Computing Systems, Carnegie Mellon, Pittsburgh, PA
Lines: 8
In-Reply-To: <2571@ucsfcca.ucsf.edu>


Low memory locations containing the addresses:
SCCRd - 0x1D9
SCCWr - 0x1DC

Constants:
#define bCtl 0 /*offset to SCC B control port*/
#define bData 4 /*offset to SCC B data interupt*/