Draw a well-labeled block diagram of 8036 microprocessor. Explain its Register organization. [10]
2.
What is Descriptor? Explain the use of descriptor in logical to physical address conversion in 80286 microprocessor. [5]
3.
What are various functional units of 80386 microprocessor? Explain function of each unit. [5]
Assembly Language Programming
1.
Explain the working of LHLD and DAA instruction of 8085. An array containing 5 elements is stored from memory location 4000h to 4004h; write an assembly language program for 8085 microprocessor to find largest element of array and store in memory location 4005h. [10]
2.
Write an assembly language program for 16 bit microprocessor to count and display number of occurrence of letter 'o' in string 'Microprocessor organization'. [5]
Basic Architecture
1.
What is mean by addressing mode? Explain different addressing modes in 8085 microprocessor. [5]
Basic I/O, Memory R/W and Interrupt Operations
1.
What is ALE? Explain the role of ALE in address/data bus De-multiplexing in 8085 with suitable diagram. [5]
Input/ Output Interfaces
1.
What do you mean by Isolated I/O? Explain basic DMA operation in brief. [5]
2.
What are different modes of parallel I/O? Differentiate between synchronous serial communication and asynchronous serial communication. [5]
Instruction Cycle
1.
Explain instruction cycle, machine cycle and T-states. Draw timing diagram of fetch and execute of LDA instruction with brief description. [10]
2.
What is flag? Explain all the flags present in 8085 microprocessor. [5]