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From: riber@uicsl.UUCP
Newsgroups: net.micro.6809
Subject: Re: stuff from May *Rainbow* - (nf)
Message-ID: <21600008@uicsl.UUCP>
Date: Fri, 20-Apr-84 11:16:00 EST
Article-I.D.: uicsl.21600008
Posted: Fri Apr 20 11:16:00 1984
Date-Received: Sun, 22-Apr-84 09:13:32 EST
References: <3500033@uokvax.UUCP>
Lines: 15
Nf-ID: #R:uokvax:3500033:uicsl:21600008:000:608
Nf-From: uicsl!riber    Apr 20 10:16:00 1984

#R:uokvax:3500033:uicsl:21600008:000:608
uicsl!riber    Apr 20 10:16:00 1984

	Sorry to say the refered to RS232 driver in RAINBOW is not,
repeat is not for an expansion interface. 
	However, it is a very good replacement for the existing
driver. To utilize this new driver, you have to make or remake a new
RS232 cable for the existing coco RS232 port.
The recieve line (rx) is tied or shorted to the carrier detect (cd) line.
this allows the driver software to set up the 6822 PIA for interrupts
These interrupts will occur whenever the first bit of character is received.
I beleive Mr. Pucket mentions this in his very fine article.
					RICK BERRY
					pur-ee!uiucdcs!uicsl!riber
h