Date: Wed, 04 Mar 1998 21:30:48 -0800 (PST) From: Simon Shapiro <shimon@simon-shapiro.org> To: John Saunders <john.saunders@scitec.com.au> Cc: Evan Champion <evanc@synapse.net>, current@FreeBSD.ORG, Matthew Thyer <Matthew.Thyer@dsto.defence.gov.au>, Mike Smith <mike@smith.net.au> Subject: Re: silo overflows (Was Re: 3.0-RELEASE?) Message-ID: <XFMail.980304213048.shimon@simon-shapiro.org> In-Reply-To: <34FE35AE.181C67A7@scitec.com.au>
next in thread | previous in thread | raw e-mail | index | archive | help
On 05-Mar-98 John Saunders wrote: > Simon Shapiro wrote: >> >> Again, don't decapitate me on this one, but does not the 16550 have a >> >> mode >> >> by which it will lower DSR and or CTS when the FIFO reaches a certain >> >> point >> >> of saturation? >> > >> > No, it doesn't, although some of the extended versions do. >> >> Brain-Dead. Then all bets are off. In the current software + hardware >> structure, interrupts will be lost. > > The CD1440 (I think that's the part number) chip in the smart cards > like Stallion and Cyclades do do automatic CTS/RTS handshaking > with the modem. They also have very large FIFOs. Which means you can > run 256 (yes two fifty six) ports at 57600 in a 486 DX4/100 ;-) > For those that are interested, 4 Stallion 64 port ISA cards. I was thinkingthe same thing. I have a Computone here that just sits on the floor collecting lint from the lanudry dryer. Simon To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?XFMail.980304213048.shimon>