1.a. Draw and explain the flag structure of 8051 with bank 2 selection.

1.b. Draw an interfacing diagram of LED connected to port 2 and write an ALP to generate ring counter with highest delay generated using mode 0.

1.c. Draw an interfacing diagram of DAC and write an ALP to generate triangular wave continuously.

2.a. Draw and explain the Interrupt structure of 8051 with vector address

2.b. Write short note on hardware debugging tools

2.c. Draw the functional diagram of DAS for display of the count from external source on LED and LCD according to the condition: when switch Sis pres ed count should be displayed o LED and when S2 on LCD, Make the provision when Count reaches to FF ring the buzzer connected with opto-isolater and Lamp the bulb connected with relay. Draw flowchart.

3.a. Draw and explain functional diagram of Timer 0 of PIC. Also differentiate between operating functions of timer 0. I and 2 of PIC

3.b. Draw and explain the data memory organization of PIC I8FXXX With concept of bank selection.

4.a. State features of PIC. draw and explain the block schematic of PIC I8FXXX .

4.b. Draw and explain the RESET functional diagram with causes.

5.a. Draw an interfacing diagram of LCD 16 x 2 with PICISFXXXX and write an embedded C program to display GST on line one and INDIA at 5th position on second line.

5.b. Draw and explain the capture mode of CCP module.

6.a. Write a program for 2.5 KHz and 75 % duty cycle PWM generation with N=4

7.b. Draw and explain the port structure of PIC with different registers used in Programming.

7.a. Explain the SPI mode of MSSP structure used for serial communication.

7.b. State features of RTC and draw an interfacing diagram with PIC 8FXXXX. write an initialization program.

8.a. Explain the use of PIC-ADC module to interface the Temp sensor LM35 used for accepting the Temp and display on LED connected to port D, write an embedded C program.

8.b. Design a PIC test board test board using LED. keypad, buzzer and relay connected to ports with control using keys and write a C program for Testing with S1 pressed LED ON and s2 pressed relay and buzzer ON.