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Text File  |  1991-05-17  |  5KB  |  116 lines
  1.  
  2. WE ARE IN THE PROCESS OF CONFIGURING A MORE COMPLETE USER GUIDE ON THIS PRODUCT 
  3. FOR THE BULLETIN BOARD.  IN THE INTERIM, THE FOLLOWING JUMPER DEFINITIONS MAY 
  4. BE HELPFUL.
  5.  
  6.                                    WDSCS-ATXT
  7.                                  Jumper Settings
  8.  
  9. **************************************************************************
  10. Jumper Block "W1"
  11. **************************************************************************
  12.  
  13. The W1 jumper block is a spare register for the BIOS to use.
  14.  
  15. **************************************************************************
  16. Jumper Block "W2"
  17. **************************************************************************
  18.  
  19.                    X=Installed
  20.                    0=Removed
  21.  
  22.      SA8    SA7    SA6    SA5                 
  23.      7-8    5-6    3-4    1-2                 I/O Port
  24.  
  25.       X      X      X      X                    200H
  26.       X      X      X      O                    220H
  27.       X      X      O      X                    240H
  28.       X      X      O      O                    250H
  29.       X      O      X      X                    280H
  30.       X      O      X      O                    200H
  31.       X      O      O      X                    2C0H
  32.       X      O      O      O                    2E0H
  33.       O      X      X      X                    300H
  34.       O      X      X      O                    320H
  35.       O      X      O      X                    340H
  36.       O      X      O      O                    360H
  37.       O      O      X      X                    380H
  38.       O      O      X      O                    3A0H
  39.       O      O      O      X                    3C0H
  40.       O      O      O      O                    3E0H
  41.  
  42. **************************************************************************
  43. Jumper Block "W3"
  44. **************************************************************************
  45.  
  46. This jumper block is used to select the BIOS ROM Address location within the 
  47. host system's memory space.  The HBIC always assumes that host address bits 
  48. BA18 (MA18) and BA19 (MA19) are logic "1", therefore, the starting address 
  49. cannot be lower than location C0000H.  The following defines the different 
  50. jumper settings and is followed by an example:
  51.  
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  67.  
  68.             MA19   MA18   MA17   MA16  MA15   MA14
  69.              1      1     ------Jumpers----------
  70.  
  71.      Signals MA14-MA17 (BA14-BA17):
  72.      
  73.      Jumper OFF = logic "1"
  74.      Jumper ON  = logic "0"
  75.      
  76.  
  77. EXAMPLE:  ATXT BIOS ROM Address = C8000H
  78.  
  79. Jumpers            7-8    5-6    3-4   1-2
  80. Address Bits              MA17   MA16  MA15   MA14
  81. Jumper Settings     ON     ON     OFF   ON
  82.  
  83.  
  84. **************************************************************************
  85. Jumper Block "W4"
  86. **************************************************************************
  87.  
  88. This jumper block is to select Interrupt Request channel.  Only one jumper 
  89. shall be used to select one Channel.
  90.  
  91.     "W4":          1-2    3-4    5-6   7-8    9-10   11-12
  92.  Channel:          BIRQ2  BIRQ3  BIRQ4 BIRQ5  BIRQ6  BIRQ7
  93.  
  94.                     ON     --     --    --     --     --    = IRQ2 SELECTED
  95.                     --     ON     --    --     --     --    = IRQ3 SELECTED
  96.                     --     --     ON    --     --     --    = IRQ4 SELECTED
  97.                     --     --     --    ON     --     --    = IRQ5 SELECTED
  98.                     --     --     --    --     ON     --    = IRQ6 SELECTED
  99.                     --     --     --    --     --     ON    = IRQ7 SELECTED
  100.  
  101. **************************************************************************
  102. Jumper Block "W5"
  103. **************************************************************************
  104.  
  105. W5 is used to tie together two different signal lines between Jumper Blocks 
  106. "W1" and "W2".
  107.  
  108.      "W5":         1-2    3-4
  109.                    
  110.                    OFF    OFF = Neither signal line tied.
  111.                     ON    OFF = "W1" 9-10 tied to "W2" 1-2 only.
  112.                    OFF     ON = "W1" 11-12 tied to "W2" 3-4 only.
  113.                     ON     ON = Both signal lines tied.
  114.  
  115.      
  116.