Exercise 8.5. This problem discusses 4-bit data bus based LCD module interfacing. To enable 4-bit data interface, command 02U (where U is user parameter and can assume values of 00,04,08 or 0C ) is used when configuring for function setting. Now consider 4-bit write operations. The timing diagram for 4-bit write operation is shown in Figure 8.21. Write a C program that configures LCD module with 4-bit data bus interface and displays 'Hello' on line 2 of the display. Figure 8.21: LCD write operation timing for 4-bit data bus interiact