Subject: Re: serial ports, yadda yadda yadda
To: Wonko the Sane <wonko@madness.tmok.com>
From: Tom Samplonius <tom@sdf.com>
List: port-sun3
Date: 01/18/1997 13:07:25
On Sat, 18 Jan 1997, Wonko the Sane wrote:
> ok, something just popped into my head while i was taking i shower. when
> i setup PPP on my i386 w/16550 running Linux i had to throttle the serial
> port down from 115K to 38.4K because 38.4K got me better speeds. i guess
> even with the fancy hardware kludge called a 16550 FIFO an ISA based 386
> can't handle high speed serial communications. if i had remembered that
> when i started asking about all this my question would have been answered
> by me myself. but, i learned a lot in the process, so it wasn't all bad.
>
> yea, i am definitely going to put the modem on one of the SUN 3/180's
>
> -wonko
The 16550 UART has a 16 character FIFO buffer.
The Zilog UART on most Sun/Sparc hw has a 3 character FIFO.
Tom