Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!samsung!uakari.primate.wisc.edu!caen!b-tech!ais.org!jfk From: jfk@ais.org (Jim Knight) Newsgroups: comp.sys.att Subject: Re: PC6300 w/ 8530 chip? Message-ID: Date: 12 Dec 90 19:38:09 GMT References: Sender: jfk@ais.org Organization: UMCC, Ann Arbor, MI Lines: 21 In article dd26+@andrew.cmu.edu (Douglas F. DeJulio) writes: >I've noticed that one of the dipswitches selects between a 8250 and an >8530 as the chip driving the serial port (I'd have to get and install >the chip, I guess, but the ROMs support it). Can anyone out there >tell me if I'd get improved performance with the 8530 chip? What >capabilities would this chip give me? The 8250 is pretty much a brain damaged chip from what I hear. I'm not sure about the 8530, but the NS16550AF or AFN are pin compatible replacement Uart's that will handle the high speeds. When I picked up my USR Hst 1441 modem (14,400 bps connects) I had to get a NS16550AFN to replace my 8250. The 8250 could not handle the speeds above 9600. Hope this helps. Jim. -- ================================================================= Come Visit M-net. Michigan's Public Access Unix and Conferencing (313) 994-5023 jfk@m-net.ann-arbor.mi.us jfk@ais.org