Path: utzoo!attcan!utgpu!jarvis.csri.toronto.edu!rutgers!tut.cis.ohio-state.edu!ucbvax!hplabs!hpfcso!hpfcdc!steve
From: steve@hpfcdc.HP.COM (Steve Taylor)
Newsgroups: comp.sys.hp
Subject: Re: 98628 Serial Card
Message-ID: <5570289@hpfcdc.HP.COM>
Date: 8 Sep 89 19:33:08 GMT
References: <23196@louie.udel.EDU>
Organization: HP Ft. Collins, Co.
Lines: 27

} From: law@udel.EDU (Jeff Law)  Subject: 98628 Serial Card
} Message-ID: <23196@louie.udel.EDU>
} I'm not talking about the set of memory mapped registers like the reset/id,
} semaphore status, interrupt status, etc.  the reference that is made by the
} manual referrs to putting data into the data register and a register number
} (1-127) into the command register and waiting for the dat to be moved into
} whatever register you specified in the command.

} / comp.sys.hp / rer@hpfcdc.HP.COM (Rob Robason) /  9:17 am  Sep  8, 1989 /
} I vaguely remember some documentation of the register functions in the
} BASIC manuals, I can't remember which ones though.  A safe bet would be
} any related to I/O.  
} ----------

Try _BASIC 5.0/5.1 Interfacing Techniques, Vol. 2: Specific Interfaces_,
pages 14-28 to 14-34 (may be off slightly on page numbers -- I'm looking
at the BASIC/UX version).

Note that STATUS intercepts registers 0,1,2,5,9,10,11 and interprets them in
software, not via this interface.  CONTROL intercepts register 0.

Information from BASIC Manuals may not work outside of BASIC environment.

NOT A STATEMENT, OFFICIAL OR OTHERWISE, OF THE HEWLETT-PACKARD COMPANY.

						Regards,
						Steve Taylor