Path: utzoo!utgpu!news-server.csri.toronto.edu!bonnie.concordia.ca!uunet!spool2.mu.edu!sdd.hp.com!elroy.jpl.nasa.gov!ncar!asuvax!mcdphx!citek.mcdphx.mot.com!hbg6 From: hbg6@citek.mcdphx.mot.com Newsgroups: sci.electronics Subject: PC Interface and DTMF Message-ID: <14446@mcdphx.phx.mcd.mot.com> Date: 21 Jan 91 17:35:47 GMT Sender: news@mcdphx.phx.mcd.mot.com Reply-To: hbg6@citek.mcdphx.mot.com Organization: Motorola Microcomputer Division, Tempe, Az. Lines: 19 Summary: Expires: Sender: Followup-To: Distribution:usa I currently am working on a personal project where I need my XT to receive DTMF (touch tone). I have the circuit working fine feeding the parallel printer port but I really want to put the decoder on the bus. I have a few full length proto-boards but they do not have the interface circuitry ( just a jillion holes ). Could someone please give me a pointer to a source for an 8 bit bus interface schematic ( or any other good ideas ). Thanks in advance, John ..................................................................... reply to 'from' address; hbg6@citek.mcdphx.mot.com NOT the 'sender' line address! Someday my sysadm will decide this is a 'real' problem. :-) ..................................................................... All opinions expressed are mine and not Motorolas, their loss. .....................................................................