PC6300 w/ 8530 chip?

[Jim Knight]

In article <MbNapHO00VI8FOUZdd at andrew.cmu.edu> dd26+ at 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.
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