1) Write a C statement to configure the lowest 4 pins of PORT A as inputs and the highest 4 pins as outputs. Write the instruction using binary notation.

2) Write a C statement to configure all the pins of PORT B as outputs. Write the instruction using hexadecimal notation.

3) Write a C statement to configure all the pins of PORT D as inputs. Write the instruction using decimal notation.

4) Write a C statement to output 5 volts through pin PB7 and zero volts through the remaining pins of PORT B. Write the instruction using binary notation, then do it using hexadecimal, and decimal notation.