Newsgroups: comp.sys.apple2 Path: news.weeg.uiowa.edu!news.uiowa.edu!uunet!spool.mu.edu!sdd.hp.com!ncr-sd!crash!pro-sol!danb From: danb@pro-sol.cts.com (Dan Brown) Subject: Re: pinouts for LC IIe serial port? Organization: ProLine [pro-sol], Rancho San Diego, CA Date: Wed, 16 Dec 92 22:26:19 PST Message-ID: In-Reply-To: arogers@eis.calstate.edu (Al Rogers) References: Lines: 37 In arogers@eis.calstate.edu (Al Rogers) writes: >I need the pinouts for the Mac LC serial port slot 2 in IIe >emulation mode. I think they're the same as the GS's (same controller chip, anyway), which are, per the Apple IIgs Hardware Reference, 2nd edition: Pin Signal Description 1 DTR Data Terminal Ready 2 HSKI Handshake In 3 TX Data- Transmit Data - 4 GND Ground reference and supply 5 RX Data- Receive Data - 6 TX Data+ Transmit Data + 7 GPI General Purpose Input (usually used for DCD) 8 RX Data+ Receive Data + >The question I need to answer is, is there enough intelligence there >to support a high-speed modem, as in Modemworks 3.0???? The serial port should be able to it, since both machines use a Zilog 8530 controller chip. The GS does it with no problems. I'm not sure if the IIe card does any additional emulation, like to make it look like a Super Serial Card. >Thanks for any help. You're welcome. :-) --> Dan ProLine: danb@pro-sol Internet: danb@pro-sol.cts.com UUCP: crash!pro-sol!danb