What steps should be taken to initialize the keyboard?

* Question

What steps should be taken to initialize the keyboard?


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Answer

1 Mask the keyboard interrupt by setting the keyboard status and the IMASKK bit of the control register.

2 Start the KB1 pin by setting the appropriate KBIEx bit in the Enable Interrupt Register.

3 Write the ACKK bit in the keyboard status and control registers to clear any dummy interrupts.

4 Clear the IMASKK bit.


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