Path: utzoo!attcan!uunet!lll-winken!lll-tis!helios.ee.lbl.gov!pasteur!ucbvax!decwrl!labrea!rutgers!gatech!udel!mmdf From: TROTH%TAMCBA.bitnet@jade.berkeley.edu (Rick Troth) Newsgroups: comp.os.minix Subject: RE: AN HISTORIC MOMENT! Message-ID: <3310@louie.udel.EDU> Date: 15 Jul 88 15:12:45 GMT Sender: mmdf@udel.EDU Lines: 10 The 8250 does not stop at 9600 baud; the ROM BIOS (or disk-based BIOS one of the two) stops at 9600 baud. You cannot do an MS-DOS A> MODE COM1:19200,n,8,1 . The 8250 has a divisor word, which is set to 000C (twelve) when you set MODE COMx:9600,etc. If you set that divisor to 1 then you would be running at 115200 baud, and your 8088 would probably not process the interrupts fast enough to keep up. - Rick