Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!helios!bcm!dimacs.rutgers.edu!seismo!uunet!cbmvax!jesup From: jesup@cbmvax.commodore.com (Randell Jesup) Newsgroups: comp.sys.amiga.datacomm Subject: Re: 19200 baud amiga Message-ID: <19397@cbmvax.commodore.com> Date: 1 Mar 91 21:50:08 GMT References: <2587@tmiuv0.uucp> <978@faatcrl.UUCP> <19116@cbmvax.commodore.com> <1022@faatcrl.UUCP> <19303@cbmvax.commodore.com> <1032@faatcrl.UUCP> <18bf2954.ARN0e27@easy.hiam.com> Reply-To: jesup@cbmvax.commodore.com (Randell Jesup) Distribution: comp Organization: Commodore, West Chester, PA Lines: 14 In article <18bf2954.ARN0e27@easy.hiam.com> lron@easy.hiam.com writes: >I think a 4 byte FIFO would be insufficent, some of the Non-DMA drive >controllers I've seen keep interupts disabled for up to a half a second and >in that time period an HST can send 800+ bytes of data. A 4 byte FIFO isn't The RKM's have always said that Disable should never be held for more than 250 microseconds. 500 milliseconds is 2000 times that. -- Randell Jesup, Keeper of AmigaDos, Commodore Engineering. {uunet|rutgers}!cbmvax!jesup, jesup@cbmvax.commodore.com BIX: rjesup The compiler runs Like a swift-flowing river I wait in silence. (From "The Zen of Programming") ;-)