KERALA UNIVERSITY Class 4 microcontroller based design Question Paper 2019

Practice authentic previous year questions for better exam preparation.

Sample Questions

What is a port latch? Give two instructions that use a port latch.
Write an 8051 ALP to check if a 8-bit number read in through port P3 is prime or not. If it is prime, send ' $Y$ ' through port P2. Else send ' $N$ '.
Explain the CJNE instruction.
Write an $8051^{\circ} \mathrm{C}$ Program to find the perfect squares from the first $n$ natural numbers and store them in RAM location starting from $31 \mathrm{H} . \mathrm{n}$ is contained in 30 H .
Describe the interrupt vector table of 8051.