MSNT35X.TXT Driver File Contents (dec_nic1.zip)

   Driver Installation - for Windows NT 3.5x
  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

   (1) Introduction:
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     This document describes the procedure to install Windows NT ver. 3.5x
     driver for 10/100 Base-TX PCI Bus Ethernet Adapter.


   (2) Location of compressed Driver:
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                                \WINNT35\DC21X4.SY_
                                \WINNT351\DC21X4.SY_


   (3) Driver Installation Procedures for Microsoft Windows NT:
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     1. In the Main group of NT, select the "Control Panel" icon.

     2. In the Control Panel window, choose the "Network" icon.

     3. In the Network Settings dialog box, choose the "Add Adapter" button.
        The Add Network Adapter dialog box appears.

     4. In the list of network cards, select "<other> Requires disk from
        manufacturer", and then press <Enter> button.

     5. Insert the driver disk in drive A, enter drive and pathname
        A:\WINNT35 which is the path  where the driver and setup
        file OEMSETUP.INF are located, and then choose the OK button.

     6. A Dialog box pops up to select the followings:
 
        ConnectionType:

         o AutoSense                  Senses dynamically the media ports 
                                      supported by the adapter. The precedence 
                                      100BaseTx, 10BaseT.


         o 100Mbps                    To connect 100BaseT Ethernet hubs

         o 100Mbps Full_Duplex        To connect 100BaseT Full Duplex hubs

         o 10Mbps                     To connect 10BaseT Ethernet hubs

         o 10Mbps Full_Duplex         To connect 10BaseT Full Duplex hubs

     7. NT will then perform the binding process.  If any additional network
        software options were installed, you may be prompted for specific
        information for these packages.

     8. Restarting your system then you will acquire network service.

     Note: If the adapter did not work fine after installation, try to adjust
           TransmitThreshold and ReceiveBuffers.

   (4). Parameters:
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          ReceiveBuffers = REG_DWORD {8..64} (default 16)

                        Number of buffers allocated by the
                        driver in the Receive ring.

          MapRegisters = REG_DWORD {4,8,16}   (default: 16(alpha) | 8)

                  Number of map registers allocated 
                  by the adapter. 

          CacheLineSize = REG_DWORD { 16 | 32 | 64 | 128 }

                                   16 bytes
                                   32 bytes (default)
                                   64 bytes
                                  128 bytes

       The following values allow to overwrite the DC21X4 default setting.
                                                                 
          BurstLength = REG_DWORD  { 1 | 2 | 4 | 8 | 16 | 32}

                         CSR0<PBL>  1  doubleword
                                    2  doublewords
                                    4  doublewords
                                    8  doublewords    
                                   16  doublewords   (default)
                                   32  doublewords

          FifoArbitration = REG_DWORD { 0 | 1 }

                        CSR0<BAR>   0 Rcv/Txm Arbitration (default)
                                    1 Round_Robin

          StoreAndForward = REG_DWORD { 0 | 1 }

                        Select the StoreAndForward mode if high
                        PCI latencies causes Transmit Underruns
                        
                        CSR6<SF>    1 Enabled
                                    0 Disabled (default)

          TransmitThreshold = REG_DWORD { 72 | 96  | 128 | 160 | 
                                         256 | 512 | 1024        }
                                       
                        CSR6<TTM,TR>  72 bytes              
                                      96 bytes
                                     128 bytes
                                     160 bytes (default)
                                     256 bytes
                                     512 bytes
                                    1024 bytes

          StopBackoffCounter = REG_DWORD { 0 | 1 }

                        CSR6<SB>    0  Disabed (Default)
                                    1  Enabled

          BackPressure = REG_DWORD { 0 | 1 }

                        CSR6<BP>    0  Disabed (default)
                                    1  Enabled

          CaptureEffect = REG_DWORD { 0 | 1 }

                        CSR6<CA>    0  Disabed (Default)
                                    1  Enabled

      These Registry values can be edited interactively through the Registry
      editor (winnt\system32\regedt32.exe) or by invoking the regini command
      Edit an DC21X4.ini file as described below, then invoke the command:

      regini DC21X4.ini

      DC21X4.ini format:

       \Registry\Machine
           System
              CurrentControlSet
                 Services
                     dc21x4_{adapter_number}
                         Parameters

                            {valuename} = {type}{value}


   (5). Error Messages:
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     The error messages are logged in the Entry Log and can be seen using the
     Entry Log Viewer (in WNT's Administration Tools group).

     Each error message has a standard Ndis error code and an driver's
     additional code.
     The additional codes are:

       DC21X4_ERRMSG_REGISTRY            0x01
       DC21X4_ERRMSG_ALLOC_MEMORY        0x02
       DC21X4_ERRMSG_SROM                0x03
       DC21X4_ERRMSG_MEDIA               0x04
       DC21X4_ERRMSG_LOAD_CAM            0x05
       DC21X4_ERRMSG_SYSTEM_ERROR        0x06
       DC21X4_ERRMSG_TXM_JABBER_TIMEOUT  0x07


   (6).  Driver Initialization Errors:
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   o NDIS_ERROR_CODE_UNSUPPORTED_CONFIGURATION
     DC21X4_ERRMSG_REGISTRY

     The AdapterType Registry's key is missing or its value is
     unsupported by the adapter board

   o NDIS_ERROR_CODE_ADAPTER_NOT_FOUND

     No board matching the AdapterCFID Registry's key value was found
     plugged into the PCI bus or in the slot specified in the Registry

   o NDIS_ERROR_CODE_OUT_OF_RESOURCES
     DC21X4_ERRMSG_ALLOC_MEMORY

     Not enough memory to allocate space for the Adapter data block

   o NDIS_ERROR_CODE_INVALID_VALUE_FROM_ADAPTER
     DC21X4_ERRMSG_SROM

     Invalid data read from the adapter's serial ROM

   o NDIS_ERROR_CODE_NETWORK_ADDRESS

     No readable burnt_in or software configured station address

   o NDIS_ERROR_CODE_UNSUPPORTED_CONFIGURATION
     DC21X4_ERRMSG_MEDIA

     The selected media port is not supported by the board.

   o NDIS_ERROR_CODE_INTERRUPT_CONNECT

     Interrupt initialization failed

   o NDIS_ERROR_CODE_TIMEOUT
     DC21X4_ERRMSG_LOAD_CAM

     DC21X4 CAM initialization failed


   (7). Driver Run Time Errors:
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   o NDIS_ERROR_CODE_HARDWARE_FAILURE
     DC21X4_ERRMSG_SYSTEM_ERROR

     System_Error interrupt (bus parity error)

   o NDIS_ERROR_CODE_HARDWARE_FAILURE
     DC21X4_ERRMSG_TXM_JABBER_TIMEOUT

     Transmit Jabber timer expired
Download Driver Pack

How To Update Drivers Manually

After your driver has been downloaded, follow these simple steps to install it.

  • Expand the archive file (if the download file is in zip or rar format).

  • If the expanded file has an .exe extension, double click it and follow the installation instructions.

  • Otherwise, open Device Manager by right-clicking the Start menu and selecting Device Manager.

  • Find the device and model you want to update in the device list.

  • Double-click on it to open the Properties dialog box.

  • From the Properties dialog box, select the Driver tab.

  • Click the Update Driver button, then follow the instructions.

Very important: You must reboot your system to ensure that any driver updates have taken effect.

For more help, visit our Driver Support section for step-by-step videos on how to install drivers for every file type.

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