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Path: utzoo!mnetor!seismo!rutgers!cbmvax!phillip
From: phillip@cbmvax.cbm.UUCP (Phillip Lindsay CATS)
Newsgroups: comp.sys.amiga
Subject: Re: Question on Serial Interrupt Servers
Message-ID: <1765@cbmvax.cbmvax.cbm.UUCP>
Date: Mon, 27-Apr-87 10:02:17 EDT
Article-I.D.: cbmvax.1765
Posted: Mon Apr 27 10:02:17 1987
Date-Received: Tue, 28-Apr-87 01:36:23 EDT
References: <689@puff.WISC.EDU>
Organization: Commodore Technology, West Chester, PA
Lines: 28

in article <689@puff.WISC.EDU>, chin-lon@puff.WISC.EDU (Chin-long Cheng) says:
> 
> In article <1693@cbmvax.cbmvax.cbm.UUCP>, phillip@cbmvax.cbm.UUCP (Phillip Lindsay CATS) writes:
> 
>> The "misc.resource" manages the serial port. Look in resources/misc.h.
>> The serial port is "MR_SERIALPORT" and protocol bits "MR_SERIALBITS."
> 
..[CHOMP]....
> But what about the MR_SERIALBITS? The MR_PAARALLELBITS are used to lock
> certain bits on the 8520 for the parallel port, but such equivalent
> for the serial port does not appear on the 8520. (As far as I understand
> it.) If you have time, please respond.

MR_SERIALBITS refers to the serial (rs232) handshake bits on CIAB Parallel
		 port A.

	MR_SERIALBITS		       MR_PARALLELBITS        
BFD000	7=DTR 6=RTS 5=CD 4=CTS 3=DSR | 2=SEL 1=POUT 0=BUSY
	^^^^^^^^^^^^^^^^^^^^^^^^^^^^ | ^^^^^^^^^^^^^^^^^^^
	SERIAL HANDSHAKE/MISC. LINES | PARALLEL HANDSHAKE/MISC. LINES

Hope this helps.
-phil
==============================================================================
Phillip (Flip) Lindsay - Commodore Business Machines - Amiga Technical Support
  UUCP: {ihnp4|seismo|caip}!cbmvax!phillip      - Phone: (215) 431-9180
  No warranty is implied or otherwise given in the form of suggestion or 
  example. Any opinions found here are of my making.