Date: Sun, 20 Aug 95 21:45:03 MET DST From: phk@login.dknet.dk (Poul-Henning Kamp) To: hackers@freebsd.org, hardware@freebsd.org Subject: A good 4 port serial card Message-ID: <9508201945.AA01479@login.dknet.dk>
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I know that it comes up at regular intervals what multiport serial cards we support in FreeBSD. Here is one I found. It's a 16bit ISA card, with four ports. Well built, good materials, and high-quality as far as I can tell. Connection is through a 37 pin D-shell connector on the back of the card, they supply an octopus with 20 cm arms and good quality male 25 pin connectors in the other end with the card. There are four sockets, and they can take all the usual chips, including a "16650" chip with 32 bytes fifo's and crtscts and xonxoff in HW. We see that chip as 16550A and run happily on it, though we don't support the advances features (yet :-) Each port has a jumper-bank to select A9-A3 and "enable", and the irq's can be steered to irq 2,3,4,5,7,10,11,12,14 or 15 for each channel. Irqs can be shared, separate, or some mix. Waitstates can be set to <= 8Mhz <= 12Mhz <= 25Mhz > 33Mhz It works out of the box with this spec: device sio4 at isa? port "0x2a0" tty flags 0x705 device sio5 at isa? port "0x2a8" tty flags 0x705 device sio6 at isa? port "0x2b0" tty flags 0x705 device sio7 at isa? port "0x2b8" tty flags 0x705 irq 5 vector siointr As far as I can tell, they also have a version with twice the above on one card, ie. 2 times four ports. I bought mine from a Danish company: Danbit Vaerkstedsvej 39-41 DK-4600 Koege Tel: +45 53 66 20 20 Fax: +45 53 66 20 30 but the manufacturer is, according to their own ideosyncratic specification: Decision Computer International Co., LTD. 4F No. 31 Alley 4, Lane 36, Sec. 5 Min-shen East Road Taipei Taiwan R.O.C Fax: 886-2-7665702 Telex: 16059 DECISION Tel: (02) 766 5753, 7659782 769-5786. Enjoy, Poul-Henning
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