Write a program that generates one cycle of a square wave with frequency of 100mHz on port pin P1.0 with duty cycle depending on the one digit input value pressed by the user on 4x3 keypad. The user is allowed to mention the value from 1 9. For example, if input value is 1 then duty cycle is 10%, if the value is 2 duty cycle is 20% and so on. Use crystal frequency f=11.0592MHz.

Note: Key presses on keypad are ignored during square wave generation.