*BSD News Article 18770


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Path: sserve!newshost.anu.edu.au!mbl900
From: mbl900@anusf.anu.edu.au (Mathew BM LIM)
Newsgroups: comp.os.386bsd.questions
Subject: Emulex DCP-286i comms. board & 386bsd?
Date: 23 Jul 1993 14:04:18 GMT
Organization: Australian National University
Lines: 36
Message-ID: <22or52$7ov@manuel.anu.edu.au>
NNTP-Posting-Host: 150.203.5.2


I have "inherited" the following board from off the AT bus on a Sun 386i,
has anyone encountered one like it and does it work with 386bsd?

>From the manual :

"The Emulex DCP-286i is a high-performance, miltiprotocol communications
processor for IBM PC products with on-board intelligence in the form of an 
Intel 286 microprocessor. <marketing guff deleted>

The DCP-286i fits in a singel full-sized expansion slot of an IBM PC, PC/XT or
PC/AT. It is capable of operating in an 8-bit mode with a singel connector or in
16-bit mode with 2 connectors. The standard version consists of 3 basic sub-
assemblies. The motherboard, the dautherboard and a breakout cable. Other
dautherboards are available ....

Memory size options include 128k or 512k (the one I have seems to have 512k).
The DCP-286i can share memory with the PC host through a shared
(dual-ported) window, the size of which is selectable through s/w and
plug positioning.

The standard DCP-286i contains up to 4 programmable ports (mine has 4). Each
port can be set uo as either sybchronous or asynchronous. Four DMA channels
are s/w configurable to 2 full-duplex or 4 half-duplex lines. The serial ports
are implemented by an 85C30 SCC Communications Controller chip
residing on the dautherboard."

All this sounds great for all sorts of things if I can get it going.
Anyone with suggestions as to how this board can be used under 386bsd?


-- 
Mathew Lim, Unix Systems Programmer, ANU Supercomputer Facility,	
Australian National University, Canberra, ACT, Australia 0200.
Telephone : +61 6 249 2750 	| 
Fax       : +61 6 247 3425	| E-Mail  : M.Lim@anu.edu.au