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        0040h:0097h         Keyboard LED Status                               
  
  
    
      | Keyboard
        LED Status | 
     
    
      | Bit | 
      Dec | 
      Hex | 
       Description | 
     
    
      | 0 | 
      1 | 
      01h | 
       Reserved
        LED state bits | 
     
    
      | 1 | 
      2 | 
      02h | 
     
    
      | 2 | 
      4 | 
      04h | 
     
    
      | 3 | 
      8 | 
      08h | 
       Reserved | 
     
    
      | 4 | 
      16 | 
      10h | 
       Received
        acknowledgement | 
     
    
      | 5 | 
      32 | 
      20h | 
       Resend receive flag | 
     
    
      | 6 | 
      64 | 
      40h | 
       Mode indicator update | 
     
    
      | 7 | 
      128 | 
      80h | 
       Keyboard transmit error | 
     
   
  
 
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