25-JAN-1997

This readme.txt file is covers the SCO Unix MDI device drivers for 
Digital's EtherWORKS 10Mb PCI/EISA adapters, based on Digital's 
DC21X4 controllers.

This file contains information on the following topics:

        1. Overview
        2. Hardware and Software Requirements
        3. Installation
        4. Parameters
        5. Troubleshooting

************
* OVERVIEW *
************

        These drivers are currently supported for the 
        following devices:
                 
        Digital DE450 EtherWORKS TURBO PCI 10 TP/BNC/AUI Adapter
        Digital DE450 EtherWORKS TURBO PCI 10 TP Adapter
        Digital DE435 EtherWORKS TURBO PCI  TP/BNC/AUI Adapter 
        Digital DE434 EtherWORKS TURBO PCI  TP Adapter  
        Digital DE425 EtherWORKS TURBO EISA TP/BNC/AUI Adapter 
                      

        The DE425, DE435 and DE450, with this driver, will 
        autosense whether the adapter is connected to the network
        by the TP, BNC or AUI port at boot time and at run time. 

        If the driver cannot sense a connected port, it will 
        set up the adapter for a TP link. 

        The SCO MDI Driver is designed to work on the new SCO 
        OpenServer Release 5.0 OS, but is not backwards compatible 
        to the older SCO Open Desktop Release 3.0 and earlier 
        operating systems.  Installation using the Software Manager 
        is straight forward and should not present any problems nor 
        error messages.

**************************************
* HARDWARE AND SOFTWARE REQUIREMENTS *
**************************************

   A.  Hardware Requirements:

         o An IBM-compatible personal computer with 80386 or higher
           microprocessor and either an EISA bus (if using the 
           DE425) or a PCI bus with an available bus mastering PCI 
           slot (if using the DE434, DE435, DE450).

   B. Firmware Requirements:

         o Fully compliant Rev. 2.0 or above PCI BIOS must be 
           supplied with the PC (NOT required if using the DE425).

   C.  Software Revision Requirements:

         o Operating System:
               SCO OpenServer Release 5.0 operating system
         o Adapter driver distribution disk 

****************
* INSTALLATION *
****************

   To install the SCO Unix MDI Device Driver:

    -   Run the Software Manager, select the 'Softare->Install New' 
        menu item and follow the on-screen popup dialog boxes for 
        instructions.  The distribution media is the floppy disk 
        supplied with the adapter.

    -   Alternatively, ftp the binary distribution file to your
        system.  Rename it "/tmp/VOL.000.000/VOL.000.000".  Run the
        Software Manager, selecting "Media Images" as the distribu-
        tion media.  When prompted for the directory, enter 
        "/tmp/VOL.000.000".  Proceed as above.

    -   Run the Network Configuration Manager, select 
        'Hardware->Add New LAN Adapter' menu item and follow the 
        on-screen popup dialog boxes for instructions. Relink the 
        kernel on exiting this utility.

    -   To activate the adapter, you must reboot. When the system 
        boots, you should see a message similar to the following 
        message among the other configuration messages:


    %dcx0  0x2000-0x2200  5 - type=DE500-AA addr=12:34:56:78:9a:bc

        with the appropriate I/O addresses, IRQ, adapter type and 
        IEEE address.


*******************
* TROUBLESHOOTING *
*******************

      No problems reported to date with this latest release (V1.0.2)