CS/B.TECH (EIE-New)/SEM-4/EI-402/2012
2012
MICROPROCESSOR & COMPUTER ARCHITECTURE
Time Allotted : 3 Hours Full Marks : 70
The figures in the margin indicate full marks.
Candidates are required to give their answers in their own words
as far as practicable.
GROUP – A
(Multiple Choice Type Question)
1. Choose the correct alternatives for any ten of the following:
10 x 1 = 10
i) Whenever the PUSH instruction is executed in case of 8085 CPU, the stack pointer is
a) decremented by 1 b) decremented by 2
c) incremented by 1 d) incremented by 2.
ii) A single instruction to clear the lower four bits of the accumulator in 8085 microprocessor is
a) XRI OFH b) ANI FOH
c) ANI OFH d) XRI FOH
iii) Machine cycle in “CALL” instruction are
a) 6 b) 5
c) 4 d) 3.
iv) Address lines requires for 32 k-byte memory chip is
a) 13 b) 14
c) 15 d) 16.
