Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!csd4.milw.wisc.edu!cs.utexas.edu!uunet!portal!cup.portal.com!Ric From: Ric@cup.portal.com (Richard Knowles Rainbolt) Newsgroups: sci.electronics Subject: Re: 6551 ACIA questoin. Message-ID: <21041@cup.portal.com> Date: 5 Aug 89 07:14:08 GMT References: <2528@tymix.UUCP> Distribution: usa Organization: The Portal System (TM) Lines: 14 According to the Rockwell manual: Bit # 3 2 Mode 0 0 RTS* high, transmitter disabled 0 1 RTS* low, transmitter interrupt enabled 1 0 RTS* low, transmitter interrupt disabled 1 1 RTS* low, trans interrupt disabled, Transmit Break on TxD. Hope this helps! -Ric- (Ric@cup.portal.com)