Path: utzoo!utgpu!news-server.csri.toronto.edu!bonnie.concordia.ca!clyde.concordia.ca!nstn.ns.ca!news.cs.indiana.edu!samsung!sdd.hp.com!zaphod.mps.ohio-state.edu!julius.cs.uiuc.edu!apple!netcom!gandrews From: gandrews@netcom.COM (Greg Andrews) Newsgroups: comp.dcom.modems Subject: Re: Why no PC modems without UART (re: Beware the Telebit T18pc) Summary: Because emulating a UART is a pain in the butt! Keywords: uart chip emulation modem Message-ID: <23314@netcom.COM> Date: 9 Feb 91 07:46:26 GMT References: <1991Feb7.225401.28138@ingres.Ingres.COM> <1991Feb9.022024.10932@wsrcc.com> Followup-To: comp.dcom.modems Organization: Netcom - Online Communication Services UNIX System {408 241-9760 guest} Lines: 19 In article <1991Feb9.022024.10932@wsrcc.com> wolfgang@wsrcc.com (Wolfgang S. Rupprecht) writes: > >Why didn't Telebit take this opportunity to design the UARTS out of >the modem? They could have replaced the two back to back UARTS with >a latch pair, or better yet a FIFO pair and made one extremely delay >delay tolerant PC bus modem. > Indeed, why wouldn't other modem manufacturers do the same thing...? Ever try to emulate a UART chip in software? Ever wonder why the smart multiport boards don't do it either? It's a pain in the butt! -- .-------------------------------------------. | Greg Andrews | gandrews@netcom.COM | `-------------------------------------------'