Explain about memory segment and segment register in 8086 microprocessor. [5]
2.
Explain Register Organization in 80386 microprocessor. [5]
3.
What is Descriptor? Explain the use of segment descriptor in physical address conversion in 80286 microprocessor. [5]
Assembly Language Programming
1.
Explain LHLD and SHLD instruction. Ten 8-bit data are stored at memory location starting from 6000H. Write an assembly program for 8085 microprocessor to calculate the sum of this data array and store the sum and carry starting from 9500H. [10]
2.
Write an ALP to convert the string 'computer science' to upper case using 16 bit microprocessor. [5]
Basic Architecture
1.
Explain the internal architecture of 8085 microprocessor with labeled block diagram. [10]
2.
Explain different addressing modes in 8085 microprocessor. [5]
Basic I/O, Memory R/W and Interrupt Operations
1.
What is ALE signal? Draw a timing diagram for LDA 5000H instruction and explain the machine cycles involved. [10]
2.
Explain different types of IO instructions. Differentiate between I/O mapped and memory mapped I/O. [5]
3.
What do you mean by vectored interrupt? Explain maskable and non-maskable interrupts in 8085 microprocessor. [5]
Input/ Output Interfaces
1.
List out the limitation of parallel communication. Explain the different operation modes of 8255A PPI. [5]
Introduction
1.
Write short notes on :a. Flags in 8085 MPU b. DMA [5]