Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!csd4.milw.wisc.edu!lll-winken!ames!elroy!peregrine!ccicpg!cci632!rit!ritcv!jeb1265 From: jeb1265%ritcv@cs.rit.edu Newsgroups: comp.sys.mac Subject: Serial Communications Message-ID: <990@cs.rit.edu> Date: 14 Mar 89 16:57:13 GMT Sender: news@cs.rit.edu Reply-To: jeb1265%ucss@cs.rit.edu (Jim Beveridge) Distribution: na Organization: Rochester Institute of Technology, Rochester, NY Lines: 10 I am trying to program the Zilog 8530 Serial Communications Controller to do SDLC synchronous mode. The technical documentation from Zilog is absolutely terrible. If anyone has any experience with doing this, please send me mail. I have made some progress on initializing the chip, and figuring out the proper sequence to send and receive a frame, but I would rather not reinvent the wheel. Thanks in advance, .. Jim ..