From owner-freebsd-hackers Sun Nov 24 20:48:34 1996 Return-Path: owner-hackers Received: (from root@localhost) by freefall.freebsd.org (8.7.5/8.7.3) id UAA04095 for hackers-outgoing; Sun, 24 Nov 1996 20:48:34 -0800 (PST) Received: from rover.village.org (rover.village.org [204.144.255.49]) by freefall.freebsd.org (8.7.5/8.7.3) with SMTP id UAA04090 for ; Sun, 24 Nov 1996 20:48:30 -0800 (PST) Received: from rover.village.org [127.0.0.1] by rover.village.org with esmtp (Exim 0.56 #1) id E0vRsxt-00062e-00; Sun, 24 Nov 1996 21:48:17 -0700 To: Michael Smith Subject: Re: Interesting Serial card: 16bit and 16650[sic] Cc: hackers@freebsd.org In-reply-to: Your message of "Mon, 25 Nov 1996 15:11:10 +1030." <199611250441.PAA27340@genesis.atrad.adelaide.edu.au> References: <199611250441.PAA27340@genesis.atrad.adelaide.edu.au> Date: Sun, 24 Nov 1996 21:48:16 -0700 From: Warner Losh Message-Id: Sender: owner-hackers@freebsd.org X-Loop: FreeBSD.org Precedence: bulk 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