================================================================================
Note 31.0                 MSV11-QA Revision Differences               No replies
FURILO::GIORGETTI                                   528 lines  21-AUG-1985 23:16
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      +---------------+                                    +-----------------+
      | d i g i t a l |                                    |  uNOTE # 031    |
      +---------------+                                    +-----------------+

                                                                   
      +----------------------------------------------------+-----------------+
      | Title: MSV11-QA Revision Differences               | Date: 28-JUN-85 |
      +----------------------------------------------------+-----------------+
      | Originator: Jack Toto                              | Page 1 of 9     |
      +----------------------------------------------------+-----------------+


      Digital Equipment Corporation recently announce the  addition  of  three
      memories  for the  Q-bus  space;  the  MSV11-QA  quad module at 1MB, the
      MSV11-QB  quad  module   at 2MB, and the  MSV11-QC  quad module at  4MB. 

      Earlier versions of the MSV11-QA  were  shipped using a  revision A etch 
      and the   documentation correctly  showed  the  jumper   configurations.  
      However early in 1985 the MSV11-QA/QB/QC started  shipping with revision 
      C etch.  The documentation  at that point  did  not show how to properly 
      configure the C etch.   It  is the intent of this MicroNote to point out 
      the differences between the two modules and to explain the configuration  
      of  both  the etch  revisions.   

      The two  modules can  be identified  in any one of the three ways listed
      in the table below;
           1. The location and value of the  modules  serial  number.
           2. The location  of CSR  and address jumpers and switches.
           3. The module's designation number, stamped on the insertion
              handles will be  different.  
                  3A. Revision A modules will be labeled M7551-AA.
                  3B. Revision C modules will be labeled M7551-AA. 


      SERIAL NUMBER LOCATION
      ----------------------

      The two modules can be identified by the location of its serial  number.
      The  revision A module will have its serial  number located in the upper 
      right hand corner of the module as you hold it with the fingers pointing  
      down or  at  you and the component side facing you or up as it would lay 
      on a work bench.  This serial number will be 5017547A1.  The location of  
      the serial  number  for revision  C module will be on the component side 
      also, but in the upper  left hand corner.  This   serial   number   will
      be 5017547-01-C1. The attached  diagrams  of the revision A and revision 
      C modules show the location of these numbers.








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      JUMPER LOCATION
      ---------------

      The MSV11-QA revision A module allows for the  selection of  Block  Mode  
      DMA  transfers,  parity detection,  and  extended  address  parity error 
      detection as well as CSR and address selection.  The  address  selection  
      includes two  switches,  one  for  the modules  starting address and one 
      for the modules ending address.  The ending  address switch is  used  to  
      control the  decode logic on the module as the same etch is used for 2MB 
      and 4MB boards as well, each with different value memory chips to  reach  
      there designed capacity.   The location  and  function of these switches 
      and  jumpers if   detailed in  the  diagrams and  configuration   tables
      attached to the end of this MicroNote.  

      The MSV11-QA revision C module does not allow for the selection of Block  
      Mode  DMA  or  for  the  selection  of  parity detection, these features 
      are built into  the  module itself and can be used or  not used  through 
      hardware/software compatibility.  When used  in a  system  that supports 
      Block Mode the MSV11-QA  will perform as  a Block Mode device, when used 
      in a non Block Mode  system it will perform  as  a normal  memory module 
      without  any  decrease in  that  system's  performance.  When used  with 
      software  such  as  RSX11 and  using mixed   parity/non-parity  memories
      parity  detection  can  be  disabled through sysgen.  The only functions 
      that a user is required to  configure to use  the MSV11-QA revision C is  
      CSR selection and starting and ending address.  It should be pointed out 
      that the two switches for starting and ending  addresses  have been flip  
      flopped from the positions in which they  were located on the revision A
      module.  Once again refer  to  the  diagrams  and  configuration  tables
      attached  to  this MicroNote for location and function of these switches
      and jumpers.

      The following pages contain diagrams and tables for configuring the two
      versions of the MSV11-QA




















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      MSV11-QA revision A Module Identification
      -----------------------------------------

      +-----+            +-+           +-+            +-----+
      |     +____________|_|___________|_|____________+     |
      +-----------------------------------------------------+
      |                                                     |
      |                                 5017547A1 <---------+- PRINTED CIRCUIT
      |                                                     |  BOARD NO.
      |                                                     |
      |                                                     |
      |                                                     |
      |                                                     |
      |                 (COMPONENT SIDE)                    |
      |                                                     |
      |                                                     |
      |                                                     |
      |                                                     |
      |                                                     |
      |                                                     |
      |                                                     |
      |                                                     |
      |             +-+          +-+            +-+         |
      ++        +---+ |        +-+ |        +---+ |        ++
       |        |     |        |   |        |     |        |
       +--------+     +--------+   +--------+     +--------+
                  (A) MSV11-QA (ETCH revision A ONLY)
  


      MSV11-QA revision A CSR SELECTION
      ---------------------------------

      NUMBER OF               JUMPER POSITION            CSR REGISTER
      MEMORY MODULE             R    P    N    M         ADDRESS 
      ---------------------------------------------------------------
       1ST                      IN   IN   IN   IN          17772100
       2ND                      OUT  IN   IN   IN          17772102
       3RD                      IN   OUT  IN   IN          17772104
       4TH                      OUT  OUT  IN   IN          17772106
       5TH                      IN   IN   OUT  IN          17772110
       6TH                      OUT  IN   OUT  IN          17772112
       7TH                      IN   OUT  OUT  IN          17772114
       8TH                      OUT  OUT  OUT  IN          17772116
       9TH                      IN   IN   IN   OUT         17772120
      10TH                      OUT  IN   IN   OUT         17772122
      11TH                      IN   OUT  IN   OUT         17772124
      12TH                      OUT  OUT  IN   OUT         17772126
      13TH                      IN   IN   OUT  OUT         17772130
      14TH                      OUT  IN   OUT  OUT         17772132
      15TH                      IN   OUT  OUT  OUT         17772134
      16TH                      OUT  OUT  OUT  OUT         17772136



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      MSV11-QA revision A STARTING AND ENDING ADDRESS
      -----------------------------------------------

      DESIRED          SW1           SW2           STARTING         ENDING
      STARTING         SWITCH        SWITCH        ENDING           SWITCH
      ADDRESS          POSITION      POSITION      ADDRESS          POSITION
      -----------------------------------------------------------------------
      IN KBYTE         12345           6           IN KBYTE          12345
      -----------------------------------------------------------------------
         0             00000           0           128               11111
       128             11111           1           256               01111
       256             01111           1           384               10111
       384             10111           1           512               00111
       512             00111           1           640               11011
       640             11011           1           768               01011
       768             01011           1           896               10011
       896             10011           1          1024 (1MB)         00011
      1024 (1MB)       00011           1          1152               11101
      1152             11101           1          1280               01101
      1280             01101           1          1408               10101
      1408             10101           1          1536               00101
      1536             00101           1          1664               11001
      1664             11001           1          1792               01001
      1792             01001           1          1920               10001
      1920             10001           1          2048 (2MB)         00001
      2048 (2MB)       00001           1          2176               11110
      2176             11110           1          2304               01110
      2304             01110           1          2432               10110
      2432             10110           1          2560               00110
      2560             00110           1          2688               11010
      2688             11010           1          2816               01010
      2816             01010           1          2944               10010
      2944             10010           1          3072 (3MB)         00010
      3072 (3MB)       00010           1          3200               11100
      3200             11100           1          3328               01100
      3328             01100           1          3456               10100
      3456             10100           1          3584               00100
      3584             00100           1          3712               11000
      3712             11000           1          3840               01000
      3840             00010           1          3968               10000
      3968             10000           1          4096 (4MB)         00000


      1 = off position (open)
      0 = on  position (closed)

      NOTE: Switch  S6 of SW1 is not used.  For a memory starting  address of 
            0, switch  S6 of  SW2  should be  set to  0 (on).  For all  other 
            starting addresses S6 of SW2 should be off (1).




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                                                                 uNOTE # 031
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      MSV11-QA revision A
      -------------------

      +-----+            +-+           +-+            +-----+
      |     +____________|_|___________|_|____________+     |
      +-----------------------------------------------------+
      |                                  5017547A1          |   
      |                              ++     +++             |
      |                PARITY -----> ++    A+++ <-----------+- CSR REGISTER
      |                 LED          ++    P+++             |  SELECTION
      |                                    N+++             |
      |                                    M+++             |
      |                                   ++                |
      |                                   ++A <-------------+- ENABLE/DISABLE
      |                                   ++B               |  CSR SELECTION
      |                                   ++                |
      |                                   SW1               |
      |                                  ++++               |
      |                                  ++++1 <------------+- STARTING ADDRESS
      |                                  |++|2              |  SWITCHES
      |                                  |++|3   ++         |  (S6 NOT USED)
      |                                  |++|4   ++W1 <-----+- ENABLE/DISABLE
      |            (COMPONENT SIDE)      |++|5   ++W2       |  BLOCK MODE
      |                                  ++++6   ++  ++     |
      |                                  OFF ON      ++K <--+- ENABLE/DISABLE
      |                                              ++L    |  EXTENDED
      |                                          SW2 ++     |  ERROR ADDRESS
      |                                         ++++        |
      |                                         ++++1 <-----+- ENDING ADDRESS
      |                                         ++++2       |  SWITCHES
      |                                         |++|3       |
      |                                         |++|4       |
      |                                         |++|5       |
      |                                         |++|6       |
      |                                         OFF ON      |
      |                                              ++++ <-+- ENABLE PARITY
      |                                          +5V ++++   |  ERROR DETECTION
      |                                           ++  JH    |
      |                                           ++ <------+- NOT USED, MODULE
      |                                           ++        |  DOES NOT SUPPORT
      |                                          +5VB       |  BATTERY BACKUP
      |             +-+          +-+            +-+         |
      ++        +---+ |        +-+ |        +---+ |        ++
       |   D    |     |   C    |   |   B    |     |   A    |
       +--------+     +--------+   +--------+     +--------+
  
                   Jumper and Switch Locations
                     (Drawing not to scale)






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  MSV11-QA revision C Module Identification
  -----------------------------------------
                    +-----+            +-+           +-+            +-----+
                    |     +____________|_|___________|_|____________+     |
                    +-----------------------------------------------------+
                    |                                                     |
   PRINTED CIRCUIT -+---------> 5017547-01-C1                             |
   BOARD NO.        |                                                     |   
                    |                                                     |
                    |                                                     |
                    |                                                     |
                    |                                                     |
                    |                 (COMPONENT SIDE)                    |
                    |                                                     |
                    |                                                     |
                    |                                                     |
                    |                                                     |
                    |                                                     |
                    |                                                     |
                    |                                                     |
                    |                                                     |
                    |             +-+          +-+            +-+         |
                    ++        +---+ |        +-+ |        +---+ |        ++
                     |        |     |        |   |        |     |        |
                     +--------+     +--------+   +--------+     +--------+
                         (B) MSV11-QA (ETCH revision C OR LATER) 
                             MSV11-QB AND MSV11-QC
  
                                  (Drawings not to scale)

      MSV11-QA revision C CSR SELECTION
      ---------------------------------

      NUMBER OF               JUMPER POSITION            CSR REGISTER
      MEMORY MODULE           J5   J7   J9   J11         ADDRESS 
      ------------------------------------------------------------------------
       1ST                    IN   IN   IN   IN          17772100
       2ND                    OUT  IN   IN   IN          17772102
       3RD                    IN   OUT  IN   IN          17772104
       4TH                    OUT  OUT  IN   IN          17772106
       5TH                    IN   IN   OUT  IN          17772110
       6TH                    OUT  IN   OUT  IN          17772112
       7TH                    IN   OUT  OUT  IN          17772114
       8TH                    OUT  OUT  OUT  IN          17772116
       9TH                    IN   IN   IN   OUT         17772120
      10TH                    OUT  IN   IN   OUT         17772122
      11TH                    IN   OUT  IN   OUT         17772124
      12TH                    OUT  OUT  IN   OUT         17772126
      13TH                    IN   IN   OUT  OUT         17772130
      14TH                    OUT  IN   OUT  OUT         17772132
      15TH                    IN   OUT  OUT  OUT         17772134
      16TH                    OUT  OUT  OUT  OUT         17772136

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                                                                 uNOTE # 031
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      MSV11-QA revision C STARTING AND ENDING ADDRESS
      ------------------------------------------

      DESIRED          SW2           SW1           STARTING         ENDING
      STARTING         SWITCH        SWITCH        ENDING           SWITCH
      ADDRESS          POSITION      POSITION      ADDRESS          POSITION
      -----------------------------------------------------------------------
      IN KBYTE         12345           6           IN KBYTE          12345
      -----------------------------------------------------------------------
         0             00000           0           128               11111
       128             11111           1           256               01111
       256             01111           1           384               10111
       384             10111           1           512               00111
       512             00111           1           640               11011
       640             11011           1           768               01011
       768             01011           1           896               10011
       896             10011           1          1024 (1MB)         00011
      1024 (1MB)       00011           1          1152               11101
      1152             11101           1          1280               01101
      1280             01101           1          1408               10101
      1408             10101           1          1536               00101
      1536             00101           1          1664               11001
      1664             11001           1          1792               01001
      1792             01001           1          1920               10001
      1920             10001           1          2048 (2MB)         00001
      2048 (2MB)       00001           1          2176               11110
      2176             11110           1          2304               01110
      2304             01110           1          2432               10110
      2432             10110           1          2560               00110
      2560             00110           1          2688               11010
      2688             11010           1          2816               01010
      2816             01010           1          2944               10010
      2944             10010           1          3072 (3MB)         00010
      3072 (3MB)       00010           1          3200               11100
      3200             11100           1          3328               01100
      3328             01100           1          3456               10100
      3456             10100           1          3584               00100
      3584             00100           1          3712               11000
      3712             11000           1          3840               01000
      3840             00010           1          3968               10000
      3968             10000           1          4096 (4MB)         00000


      1 = off position (open)
      0 = on  position (closed)

      NOTE: Switch  S6 of SW2 is not  used. For a memory starting  address 
            of 0, switch S6 of SW1 should be set  to 0 (on). For all other 
            starting addresses S6 of SW1 should be off (1).





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      MSV11-QA revision C          
      -------------------

      +-----+            +-+           +-+            +-----+
      |     +____________|_|___________|_|____________+     |
      +-----------------------------------------------------+
      |                                                     |
      |      5017547-01-C1             +++++ <--------------+-- CSR REGISTER
      |                                +++++                |   SELECTION
      |                                +++++                |
      |                                                     |
      |                                                     |
      |                                                     |
      |                                                     |
      |                                            SW2      |
      |                                           ++++      |
      |                                           ++++1 <---+- STARTING ADDRESS
      |                                           ++++2     |  SWITCHES
      |                                           ++++3     |  (S6 NOT USED)
      |                                           ++++4     |
      |                                           ++++5     |
      |                                           ++++6     |
      |         (COMPONENT SIDE)                            |
      |                                                     |
      |                                                     |
      |                                       SW1           |
      |                                      ++++           |
      |                                      ++++1 <--------+- ENDING ADDRESS
      |                                      ++++2          |  SWITCHES
      |                                      ++++3          |
      |                                      ++++4          |
      |                                      ++++5          |
      |                                      ++++6          |
      |                                                     |
      |                                                     |
      |                                         o   o <-----+- BATTERY BACKUP
      |                                         o   o       |  JUMPERS
      |                                      W2 o   o W1    |
      |                                         o   o       |
      |                                                     |
      |             +-+          +-+            +-+         |
      ++        +---+ |        +-+ |        +---+ |        ++
       |        |     |        |   |        |     |        |
       +--------+     +--------+   +--------+     +--------+
  
                       Jumpers and Switches
                      (Drawing not to scale)







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                   COMPARISON OF SIMILAR FUNCTION JUMPERS 
                   --------------------------------------


      JUMPER        SELECTABILITY      ENABLED               DISABLED
      FUNCTION      REV-A    REV-A     CONFIGURATION         CONFIGURATION
      ----------------------------------------------------------------------
      DISABLE       YES      NO        W1 IN (J11 TO J12)   W2 IN (J11 TO J10)
      BLOCK MODE                       W2 OUT               W1 OUT
      -----------------------------------------------------------------------
      DISABLE       YES      NO        JUMPER B IN          JUMPER A IN
      PARITY                           (J14 TO 13)          (J14 TO J5)
      MEMORY                           JUMPER A OUT         JUMPER B OUT
      -----------------------------------------------------------------------
      DISABLE       YES      NO        JUMPER H IN          JUMPER G IN
      PARITY                           (J2 TO J3)           (J1 TO J2)
      DETECTION                        JUMPER G OUT         JUMPER H OUT
      -----------------------------------------------------------------------
      DISABLE       YES      NO        JUMPER L IN          JUMPER K IN
      22-BIT                           (J8 TO J7)           (J8 TO J9)
      ADDRESSING                       JUMPER K OUT         JUMPER L OUT
      -----------------------------------------------------------------------
      BATTERY       NO       YES       W3 AND W1 IN         W4 AND W1 IN
      BACKUP                              WITH                 WITH 
      SUPPORT                          W4 AND W1 OUT        W3 AND W1 OUT
                                      (revision C ONLY)    (revision C ONLY)
      ----------------------------------------------------------------------

      BATTERY BACKUP
      CONFIGURATION   NOTE: JUMPERS W4 AND  W2  ARE LOCATED BETWEEN E21 AND 
                            E13 IN  THE LOWER  RIGHT  HAND  CORNER  OF  THE 
                            COMPONENT  SIDE OF  THE MODULE.  FOR THE ACTUAL 
                            LOCATION OF THESE AND ALL OTHER  JUMPERS PLEASE 
                            REFER TO THE USERS GUIDE.



















				   245

