Date: Sun, 24 Nov 1996 21:48:16 -0700 From: Warner Losh <imp@village.org> To: Michael Smith <msmith@atrad.adelaide.edu.au> Cc: hackers@freebsd.org Subject: Re: Interesting Serial card: 16bit and 16650[sic] Message-ID: <E0vRsxt-00062e-00@rover.village.org> In-Reply-To: Your message of "Mon, 25 Nov 1996 15:11:10 %2B1030." <199611250441.PAA27340@genesis.atrad.adelaide.edu.au> References: <199611250441.PAA27340@genesis.atrad.adelaide.edu.au>
next in thread | previous in thread | raw e-mail | index | archive | help
In message <199611250441.PAA27340@genesis.atrad.adelaide.edu.au> Michael Smith writes: : Warner Losh stands accused of saying: : > It claims to have support for 115200 OR 230400 or 460800 baud. Well, : > the rates higher than 115200 are reserved to software developers. : : *laugh* Sounds like it has a faster clock onboard and a programmable : divider. What's the crystal on the card? 7.3738MHz. The buad rate selectors go into a 74LS74. Looks like a strong case for simple divide my n :-). : > Looking at the card, it also supports most of the IRQ lines. However, : > the small tab of the card only has IRQ pins, so I'm not sure if it : > decodes 16bit addresses, or can do 16bit data transfers. : : The 16650 is still an 8-bit part, so extra databits would be useless. Makes sense. I have confirmed that the tongues in question are IRQ 10, 11, 12, and 15. So it sounds like it would work with FreeBSD.... That's good to know. Warner
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?E0vRsxt-00062e-00>