WD80x3/SMC80x3 jumper settings

Last updated: [an error occurred while processing the directive][an error occurred while processing the directive]


STANDARD MICROSYSTEMS
8003/8013 FAMILY LAN ADAPTERS

JUMPER AND CONFIGURATION SETTINGS
November 22, 1991

Each Standard Microsystems (formerly Western Digital) LAN adapter provides several parameters that may need to be configured prior to using the adapter in a network. Some adapters are configured by setting appropriate jumpers on the board, others are configured via a software setup program. The following tables summarize the configuration options for each adapter.

For more detailed information on any adapter, or for information on jumpers for an adapter that is not listed here, refer to the User Installation Guide that comes with the adapter.

Notes regarding XT/AT bus adapters:

You can ftp the ezsetup-program, copied a long ago from the SMC ftp-site, or look at the other utilities for it.

For a Micro Channel bus board, the RAM base address, I/O base address, boot ROM base address, and interrupt request level are set by the system configuration procedure when the board is installed. Every software driver obtains this information automatically and adjusts its operation accordingly.

Index


"*" DENOTES THE SETTINGS OF JUMPERS INSTALLED AT THE FACTORY.


== EtherCard PLUS ELITE (SMC 8003EP and WD8003EP) ==


 JUMPER
 BLOCK    NAME    POSITION                     FUNCTION
 ------   ------  -----------  ------------------------------------------

  W1      CONFIG  SOFT         If jumper is installed when power is turned
                               on, the I/O Base Address, IRQ, and RAM Base
                               Address are set to the value last stored
                               with the EZSETUP program.  Initially the I/O
                               Base Address will be 240 with RAM disabled.
                  280,3,D0000* If jumper is installed when power is turned
                               on:
                               -I/O Base Address is set to 280.
                               -IRQ is set to 3.
                               -RAM Base Address is set to D0000.
                  300,5,CA000  If jumper is installed when power is turned
                               on:
                               -I/O Base Address is set to 300.
                               -IRQ is set to 5.
                               -RAM Base Address is set to CA000.
  W2      ROM     NONE/SOFT*   If jumper is installed when power is turned
          ADDR                 on:
                               -the ROM Base Address is set to the value
                                last stored, or is disabled with the EZSETUP
				program.
                  D8000        If jumper is installed when power is turned
                               on,
                               -ROM Base Address is set to D8000.

  W3      AUI-                 Ethernet type:  use AUI position for thick
          BNC                  Ethernet (external transceiver); use BNC (*)
                               position for thin Ethernet (BNC connector).


== EtherCard PLUS ELITE16 (SMC 8013EPC and WD8013EP) ==


 JUMPER
 BLOCK    NAME    POSITION                     FUNCTION
 ------   ------  -----------  ------------------------------------------

  W1      CONFIG  SOFT         If jumper is installed when power is turned
                               on, the I/O Base Address, IRQ, and RAM Base
                               Address are set to the value last stored
                               with the EZSETUP program.  Initially the I/O
                               Base Address will be 240 with RAM disabled.
                  280,3,D0000* If jumper is installed when power is turned
                               on:
                               -I/O Base Address is set to 280.
                               -IRQ is set to 3.
                               -RAM Base Address is set to D0000.
                  300,10,CC000  If jumper is installed when power is turned
                               on:
                               -I/O Base Address is set to 300.
                               -IRQ is set to 10.
                               -RAM Base Address is set to CC000.
  W2      ROM     SOFT*        If jumper is installed when power is turned
          ADDR                 on:
                               -the ROM Base Address is set to the value
                                last stored, or is disabled with the EZSETUP
			        program.
                  D8000        If jumper is installed when power is turned
                               on,
                               -ROM Base Address is set to D8000.

  W3      AUI-                 Ethernet type:  use AUI position for thick
          BNC                  Ethernet (external transceiver); use BNC (*)
                               position for thin Ethernet (BNC connector).
			       
			       NOTE! The SMC 8013EPC does not contain
			       a W3 jumper, cable type is configured
			       through EZSETUP.


== EtherCard PLUS ELITE16C (SMC 8013EWC and WD8013EW) ==


 JUMPER
 BLOCK    NAME    POSITION                     FUNCTION
 ------   ------  -----------  ------------------------------------------

  W1      CONFIG  SOFT         If jumper is installed when power is turned
                               on, the I/O Base Address, IRQ, and RAM Base
                               Address are set to the value last stored
                               with the EZSETUP program.  Initially the I/O
                               Base Address will be 240 with RAM disabled.
                  280,3,D0000* If jumper is installed when power is turned
                               on:
                               -I/O Base Address is set to 280.
                               -IRQ is set to 3.
                               -RAM Base Address is set to D0000.
                  300,10,CC000  If jumper is installed when power is turned
                               on:
                               -I/O Base Address is set to 300.
                               -IRQ is set to 10.
                               -RAM Base Address is set to CC000.
  W2      ROM     SOFT*        If jumper is installed when power is turned
          ADDR                 on:
                               -the ROM Base Address is set to the value
                                last stored, or is disabled with the EZSETUP
			        program.
                  D8000        If jumper is installed when power is turned
                               on,
                               -ROM Base Address is set to D8000.

  W3      AUI-                 Ethernet type:  use AUI position for thick
          BNC                  Ethernet (external transceiver); use BNC (*)
                               position for thin Ethernet (BNC connector).
			       
			       NOTE! The SMC 8013EWC does not contain
			       a W3 jumper, cable type is configured
			       through EZSETUP.		


== EtherCard PLUS ELITE16T (SMC 8013WC and WD8013W) ==


 JUMPER
 BLOCK    NAME    POSITION                     FUNCTION
 ------   ------  -----------  ------------------------------------------

  W1      CONFIG  SOFT         If jumper is installed when power is turned
                               on, the I/O Base Address, IRQ, and RAM Base
                               Address are set to the value last stored
                               with the EZSETUP program.  Initially the I/O
                               Base Address will be 240 with RAM disabled.
                  280,3,D0000* If jumper is installed when power is turned
                               on:
                               -I/O Base Address is set to 280.
                               -IRQ is set to 3.
                               -RAM Base Address is set to D0000.
                  300,10,CC000  If jumper is installed when power is turned
                               on:
                               -I/O Base Address is set to 300.
                               -IRQ is set to 10.
                               -RAM Base Address is set to CC000.
  W2      ROM     SOFT*        If jumper is installed when power is turned
          ADDR                 on:
                               -the ROM Base Address is set to the value
                                last stored, or is disabled with the EZSETUP
			        program.
                  D8000        If jumper is installed when power is turned
                               on,
                               -ROM Base Address is set to D8000.


== EtherCard PLUS with Boot ROM Socket (WD8003EB) ==


 JUMPER
 BLOCK    NAME                  FUNCTION
 ------   ----    ---------------------------------------------
  W1      INIT    If jumper is installed when power is turned on,
          280     I/O Base Address is temporarily set to 280.
                  Setup Program must then be run to store new I/O
                  Base Address, and jumper must be removed (*).

  W3      AUI-    Ethernet type:  use AUI position for thick
          BNC     Ethernet (external transceiver); use BNC (*)
                  position for thin Ethernet (BNC connector).

  W9      ROM     Size of optional ROM installed (2 jumpers).
          Size                  LEFT JUMPER     RIGHT JUMPER
                                 POSITION         POSITION
                  16 Kbytes(*)      Top              Top
                  32 Kbytes       Bottom             Top
                  64 Kbytes       Bottom           Bottom
                  Jumpers are ignored if no ROM is installed
		  and ROM is disabled through EZSETUP.



== EtherCard PLUS16 16-Bit Ethernet Adapter (WD8013EBT) ==


  JUMPER
  BLOCK   NAME                    FUNCTION
  ------  --------  --------------------------------------------
  W0      Wait      Reduces the required wait states for an 8-
          States    bit memory access from four to two.
          8-Bit
          Access

  W0      Wait      Reduces the required wait states for a 16-
          State     bit memory access from one to zero.

          16-Bit
          Access    Install both the 8-and 16-bit jumpers to
                    enhance performance on systems with I/O
                    bus speeds of 8MHz or less.  Factory setting
                    is both jumpers removed, which ensures
                    correct operation in faster bus systems.
                    The jumpers are ignored in XT bus systems.

  W1      I/O Base  Selects the hex I/O Base Address.  Options
          Address   are  200,  220,  240,  260,  280(*),  2A0,
                    2C0,  300,  340, and 380

  W2      IRQ       Selects the interrupt request (IRQ) level
          Level     to be used by the adapter.  IRQ10, 11 and
                    15 are not available in 8-bit bus systems
                    such as the IBM PC and PC XT.  IRQ2/9
                    position selects IRQ2 for PC and XT type
                    systems (8-bit bus), and IRQ9 for AT type
                    systems (16-bit bus).  Only one jumper
                    may be installed at a time.

                    IRQ options are:  2, 3(*), 4, 5, 7,
                                      9, 10, 11, 15

  W3      AUI-      Ethernet type:  Use AUI position for thick
          BNC       Ethernet (external transceiver): Use BNC(*)
                    position for thin Ethernet (BNC connector).

  W6      ROM       Selects ROM memory space, if a ROM is
          Memory    installed.  Options:  NONE(*), 16K, 32K,
          Space     and 64K

  W9      ROM       Size of optional ROM installed (2 jumpers).
          Size      Jumpers are ignored when W6 is set to NONE.

                    ROM SIZE   TOP JUMPER   BOTTOM JUMPER
                                  POSITION      POSITION
                    16 Kbytes(*)    Left          Left
                    32 Kbytes       Left          Right
                    64 Kbytes       Right         Right

W15       ROM       Establishes the base address for the ROM
          Base      device (Up to 3 jumpers).  Jumpers are
          Address   ignored when W6 is set to NONE.

                    SELECTED       JUMPERS INSTALLED AT:
                    ADDRESS    C4000        C8000       D0000
                     C0000
                     C4000        X
                     C8000                     X
                     D0000                                 X
                     CC000        X            X
                     D4000        X                        X
                     D8000(*)                  X           X
                     DC000        X            X           X


		     NOTE! X - Represents an installed jumper.
			


== EtherCard PLUS (WD8003E) ==
            And
== EtherCard PLUS With Boot ROM Socket (WD8003EBT) ==


  JUMPER  CLOSED           FUNCTION SELECTED
  BLOCK   PIN #'S   NAME   WHEN JUMPER IS INSTALLED
  ------  --------  ----   ----------------------------
  W1       1-2      Zero   Select zero wait states for optimized
                    Wait   operation in a 6MHz AT.  (Factory
                           setting is jumper removed, which
                           ensures correct operation in faster
                           AT bus systems.)  This jumper is
                           ignored in XT bus systems.

  W1                I/O Base  Selects the I/O Base Address
                    Address  
  
	   3-4, 5-6, 7-8, 9-10  = 200
	   5-6, 7-8, 9-10       = 220
	   3-4, 7-8, 9-10       = 240
           7-8, 9-10            = 260
           3-4*,5-6*,9-10*      = 280 -- the factory setting
           5-6, 9-10            = 2A0
           3-4, 9-10            = 2C0
           9-10                 = 2E0
           3-4, 5-6, 7-8        = 300
           5-6, 7-8             = 320
           3-4, 7-8             = 340
	   7-8                  = 360
           3-4, 5-6             = 380
           5-6                  = 3A0
           3-4                  = 3C0
           NONE                 = 3E0

  W2       1-2      IRQ7   Interrupt request level.
           3-4      IRQ6   Only one jumper may be installed at a
           5-6      IRQ5   time.
           7-8      IRQ4
           9-10*    IRQ3   (Factory setting is IRQ3)
           11-12    IRQ2

  W3       1-2*     AUI-   Ethernet type: pins all jumpered to
           3-4*     BNC    use J1 BNC connector for thin Ethernet
           5-6*            cable (* - the factory setting).
           7-8*            Jumpers all removed to use J2 AUI
           9-10*           connector (thick Ethernet cable).
           11-12*

  W4       1-2   Ethernet  Jumper removed for thin Ethernet and
                 Version   IEEE 802.3/Version 2 thick Ethernet
                           (the factory setting);  jumper in-
                           stalled for thick Ethernet Version 1.

  W5       1-2*   Segment  Selects thin Ethernet segment length:
                  Length   jumpered for IEEE 802.3 standard 185m
                           length (*-the factory setting); jumper
                           removed for 300m extended length.


== Additional Jumpers On ==
== EtherCard PLUS With ROM Socket Only (WD8003EBT) ==

  JUMPER  CLOSED           FUNCTION SELECTED WHEN
  BLOCK   PIN #'S   NAME   INDICATED JUMPERS ARE INSTALLED
  ------  -------   ----    ------------------------------------
  W6      NONE      ROM    C0000 (16K, 32K, 64K ROMs)
          1-2       Base   C4000 (16K ROMs)
          3-4      Address C8000 (16K, 32K ROMs)
          1-2, 3-4         CC000 (16K ROMs)
          5-6              D0000 (16K, 32K, 64K ROMs)
          1-2, 5-6         D4000 (16K ROMs)
          3-4*, 5-6*       D8000 (16K, 32K ROMs)--factory setting
          1-2, 3-4, 5-6    DC000 (16K ROMs)
                           (NOTE:  Do not use addresses C0000
                           or C4000 for Boot ROMs)

  W6      7-8*,9-10* ROM   ROM Disabled -- the factory setting
  W9      3-4*       Size     "
  W10     3-4*           "

  W6      NONE       ROM   16 Kbytes ROM
  W9      3-4        Size     "
  W10     3-4            "

  W6      7-8        ROM   32 Kbytes ROM
  W9      3-4        Size     "
  W10     1-2            "

  W6      9-10       ROM   64 Kbytes ROM
  W9      1-2        Size     "
  W10     1-2            "

  W7      3-4*       RAM   8 Kbytes RAM -- the factory setting
  W8      3-4*       Buffer   "
  W11     2-3*       Size     "   

  W7      1-2        RAM   32 Kbytes RAM
  W8      1-2        Buffer     "
  W11     1-2        Size       "      (NOTE:  valid 32 Kbyte RAM
                           base addresses are C0000, C8000,
                           D0000 and D8000.)



== EtherCard PLUS TP For Unshielded Twisted Pair Wiring,
   LattisNet Compatible (WD8003WT) ==


  JUMPER  CLOSED           FUNCTION SELECTED
  BLOCK   PIN #'S   NAME   WHEN JUMPERS ARE INSTALLED
  ------  --------  ----   -------------------------------------
  W1       1-2      Zero   Select zero wait states for optimized
                    Wait   operation in a 6MHz AT.  (Factory
                    State  setting is jumper removed, which
                           ensures correct operation in faster
                           AT bus systems.)  This jumper is
                           ignored in XT bus systems.

  W1             I/O Base  Selects the I/O Base Address
                 Address   (Up to 3 jumpers)

           3-4, 5-6, 7-8, 9-10  = 200
	   5-6, 7-8, 9-10       = 220
           3-4, 7-8, 9-10       = 240
           7-8, 9-10            = 260
           3-4*,5-6*,9-10*      = 280 -- the factory setting
           5-6, 9-10            = 2A0
           3-4, 9-10            = 2C0
           9-10                 = 2E0
           3-4, 5-6, 7-8        = 300
           5-6, 7-8             = 320
           3-4, 7-8             = 340
	   7-8                  = 360
           3-4, 5-6             = 380
           5-6                  = 3A0
           3-4                  = 3C0
           NONE                 = 3E0

  W2       1-2      IRQ7   Selects  the Interrupt request level.
           3-4      IRQ6   Only one jumper may be installed at a
           5-6      IRQ5   time.
           7-8      IRQ4
           9-10*    IRQ3   -- the factory setting
           11-12    IRQ2

  W3       1-2*     RJ-45  Ethernet type: pins all jumpered to
           3-4*     -AUI   use RJ-45 twisted pair wiring connec-
           5-6*            tor (*-the factory setting).  Jumpers
           7-8*            all removed to use AUI connector.
           9-10*
           11-12*

  W6             ROM Base  Selects the ROM base address
                 Address   (Up to 3 jumpers)

          NONE             C0000 (16K, 32K, 64K ROMs)
          1-2              C4000 (16K ROMs)
          3-4              C8000 (16K, 32K ROMs)
          1-2, 3-4         CC000 (16K ROMs)
          5-6              D0000 (16K, 32K, 64K ROMs)
          1-2, 5-6         D4000 (16K ROMs)
          3-4*, 5-6*       D8000 (16K, 32K ROMs)--factory setting
          1-2, 3-4, 5-6    DC000 (16K ROMs)
                           (NOTE:  Do not use addresses C0000
                           or C4000 for Boot ROMs)


  W6      7-8*,9-10* ROM   ROM Disabled -- the factory setting
  W9      2-3*       Size     "
  W10     2-3*           "

  W6      NONE       ROM   16 Kbytes ROM
  W9      2-3        Size     "
  W10     2-3            "

  W6      7-8        ROM   32 Kbytes ROM
  W9      2-3        Size     "
  W10     1-2            "

  W6      9-10       ROM   64 Kbytes ROM
  W9      1-2        Size     "
  W10     1-2            "


  W7      2-3*      RAM     8 Kbytes RAM -- the factory setting
  W8      2-3*      Buffer    "
  W11     2-3*      Size "      

  W7      1-2       RAM     32 Kbytes RAM
  W8      1-2       Buffer    "
  W11     1-2       Size      "       (NOTE:  valid 32 Kbyte RAM
                           base addresses are C0000, C8000, D0000
                           and D8000.)


== EtherCard PLUS10T for Unshielded Twisted Pair Wiring - 10BaseT
   Draft Standard Compatible ( WD8003W ) ==


  JUMPER
  BLOCK   NAME                  FUNCTION
  ------  ----    ---------------------------------------------
  W1      INIT    If jumper is installed when power is turned on,
          280     I/O Base Address is temporarily set to 280.
                  Setup Program must then be run to store new I/O
                  Base Address, and jumper must be removed (*).

  W9      ROM     Size of optional ROM installed (2 jumpers).
          Size                  LEFT JUMPER     RIGHT JUMPER
                                 POSITION         POSITION
                  16 Kbytes(*)      Top              Top
                  32 Kbytes       Bottom             Top
                  64 Kbytes       Bottom           Bottom
                  Jumpers are ignored if no ROM is installed.

  W20       Auto  In the ON position (*), the adapter automati-
        Polarity  cally corrects for incorrect polarity on the
      Correction  receive twisted pair.  If W20 is installed in
                  the OFF position, the receive twisted pair
                  polarity must be correct on the RJ-45 port
                  according to the 10BaseT standard.

  W21       Link  The 10BaseT link integrity test between the
       Integrity  adapter and a 10BaseT concentrator is per-
                  formed with the jumper removed (*).  The
                  link integrity test is not performed if the
                  jumper is installed.




== EtherCard PLUS10T for Unshielded Twisted Pair Wiring - 10BaseT
   Draft Standard Compatible ( SMC 8003WC ) ==


 JUMPER
 BLOCK    NAME    POSITION                     FUNCTION
 ------   ------  -----------  ------------------------------------------

  W1      CONFIG  SOFT         If jumper is installed when power is turned
                               on, the I/O Base Address, IRQ, and RAM Base
                               Address are set to the value last stored
                               with the EZSETUP program.  Initially the I/O
                               Base Address will be 240 with RAM disabled.
                  280,3,D0000* If jumper is installed when power is turned
                               on:
                               -I/O Base Address is set to 280.
                               -IRQ is set to 3.
                               -RAM Base Address is set to D0000.
                  300,5,CA000  If jumper is installed when power is turned
                               on:
                               -I/O Base Address is set to 300.
                               -IRQ is set to 5.
                               -RAM Base Address is set to CA000.
  W2      ROM     SOFT*        If jumper is installed when power is turned
          ADDR                 on:
                               -the ROM Base Address is set to the value
                                last stored, or is disabled with the EZSETUP
			        program.
                  D8000        If jumper is installed when power is turned
                               on,
                               -ROM Base Address is set to D8000.


== EtherCard PLUS/A For Micro Channel (WD8003ET/A) ==



  JUMPER  CLOSED           FUNCTION SELECTED WHEN
  BLOCK   PIN #'S  NAME    INDICATED JUMPERS ARE INSTALLED
  ------  -------- ----    ------------------------------------
  W3      1-2*      AUI-   Ethernet type: pins all jumpered to
          3-4*      BNC    use J1 BNC connector for thin Ethernet
          5-6*              cable (*-the factory setting).
          7-8*             Jumpers all removed to use J2 AUI
          9-10*             connector (thick Ethernet cable).
          11-12*

  W9      2-3*      ROM    16 Kbytes ROM -- the factory setting
  W10     NONE*     Size      "

  W9      1-2       ROM    32 Kbytes ROM
  W10     1-2       Size      "

  W9      2-3       ROM    64 Kbytes ROM
  W10     1-2       Size      "



== EtherCard PLUS/A for Micro Channel (WD8003E/A) ==


  JUMPER
  BLOCK   NAME                  FUNCTION
  ------  ----    ---------------------------------------------
  W3      AUI-    Ethernet type (2 jumpers):  Use AUI position
          BNC     for both jumpers for thick Ethernet (external
                  transceiver);  Use BNC (*) position for both
                  jumpers for thin Ethernet (BNC connector).

  W9,W10  ROM     Size of optional ROM installed (2 jumpers).
          Size
                                   W10           W9
                  16 Kbytes (*)    Top           Top
                  32 Kbytes       Bottom         Top
                  64 Kbytes       Bottom       Bottom
                  Jumpers are ignored if no ROM is installed
                  and ROM is disabled via the configuration diskette. 



== EtherCard PLUS10T/A for Micro Channel (WD8003W/A) ==


  JUMPER
  BLOCK    NAME                  FUNCTION
  ------   ----   ---------------------------------------------
  W9,W10   ROM    Size of optional ROM installed (2 jumpers).
           Size
                                   W10           W9
                  16 Kbytes (*)    Top           Top
                  32 Kbytes       Bottom         Top
                  64 Kbytes       Bottom        Bottom
                  Jumpers are ignored if no ROM is installed
		  and ROM is disabled via the configuration diskette.

  W20       Auto  In the ON position (*), the adapter automati-
        Polarity  cally corrects for incorrect polarity on the
      Correction  receive twisted pair.  If W20 is installed in
                  the OFF position, the receive twisted pair
                  polarity must be correct on the RJ-45 port
                  according to the 10BaseT standard.

  W21       Link  The 10BaseT link integrity test between the
       Integrity  adapter and a 10BaseT concentrator is per-
                  formed with the jumper removed (*).  The
                  link integrity test is not performed if the
                  jumper is installed.



== StarCard PLUS/A For Micro Channel (WD8003ST/A) ==


  JUMPER  CLOSED           FUNCTION SELECTED WHEN
  BLOCK   PIN #'S   NAME   INDICATED JUMPERS ARE INSTALLED
  ------  --------  ----   ------------------------------------
  W9      2-3*      ROM    16 Kbytes ROM--the factory setting
  W10     NONE*     Size      "

  W9      2-3       ROM    32 Kbytes ROM
  W10     1-2       Size        "

  W9      1-2       ROM    64 Kbytes ROM
  W10     1-2       Size      "



== StarCard PLUS (WD8003S) ==
            And
== StarLink PLUS (WD8003SH) ==


  JUMPER  CLOSED           FUNCTION SELECTED
  BLOCK   PIN #'S   NAME   WHEN JUMPER IS INSTALLED
  ------  --------  ----   ----------------------------

  W2       1-2      Zero   Select zero wait states for optimized
                    Wait   operation in a 6MHz AT.  (Factory
                           setting is jumper removed, which
                           ensures correct operation in faster
                           AT bus systems.)  This jumper is
                           ignored in XT bus systems.

  W2             I/O Base  Selects the I/O Base Address
                 Address   (Up to 3 jumpers)

           3-4*,5-6*,9-10* 280 -- the factory setting
           5-6, 9-10       2A0
           3-4, 9-10       2C0
           9-10            2E0
           3-4, 5-6, 7-8   300
           5-6, 7-8        320
           3-4, 7-8        340

  W1       1-2      IRQ7   Interrupt request level.
           3-4      IRQ6   Only one jumper may be installed at a
           5-6      IRQ5   time.
           7-8      IRQ4
           9-10*    IRQ3   -- the factory setting
           11-12    IRQ2

  W3       1-2*            StarCard PLUS (WD8003S):
                                Jumper must be installed
           1-2             StarLink PLUS (WD8003SH):
                                Jumper must be removed
                           (for compatibility with 802.3 1BASE5
                           StarLAN standard.)


== Additional Jumpers On ==
== StarLink PLUS Only (WD8003SH) ==

  JUMPER  CLOSED                      FUNCTION SELECTED WHEN
  BLOCK   PIN #'S              NAME   INDICATED JUMPERS ARE INSTALLED
  ------  --------          --------- -----------------------------------
  W4      11-12                ROM    Enabled when jumper installed;
                              Enable  disabled (the factory setting) when
                                      jumper removed


  W4                        ROM Base  Selects the ROM Base Address
                             Address  (Up to 3 jumpers)

          3-4*,7-8*,9-10*     C8000   (16K, 32K ROMs)--factory setting
          7-8, 9-10           CC000   (16K ROMs)
          3-4, 5-6,9-10       D0000   (16K, 32K, 64K ROMs)
          5-6, 9-10           D4000   (16K ROMs)
          3-4, 9-10           D8000   (16K, 32K ROMs)

  W5      1-3*, 2-4*          ROM     16 Kbytes ROM -- the factory setting
  W6      1-3*, 2-4*          Size       "

  W5      1-3, 4-6            ROM     32 Kbytes ROM
  W6      1-3, 4-6            Size       "

  W5      3-5, 4-6            ROM     64 Kbytes ROM
  W6      3-5, 4-6            Size       "

[an error occurred while processing the directive]