0:497h                   Keyboard LED Status
 
 Length: 1 byte
 
    Contains the state of the keyboard LED.
 
                        Keyboard LED Status
 
              7 6 5 4 3 2 1 0
              x . . . . . . .       Keyboard Transmit error
              . x . . . . . .       Mode Indicator update
              . . x . . . . .       Resend Receive flag
              . . . x . . . .       Received Acknowledgment
              . . . . x . . .       Reserved
              . . . . . x x x       Keyboard LED State bits