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Strathmore UNIVERSITY SCHOOL OF COMPUTING AND ENGINEERING SCIENCES BACHELOR OF SCIENCE IN INFORMATICS AND COMPUTER SCIENCE ICS 3 1 1 1 : MICROPROCESSORS CONTINUOUS ASSESSMENT

Strathmore
UNIVERSITY
SCHOOL OF COMPUTING AND ENGINEERING SCIENCES
BACHELOR OF SCIENCE IN INFORMATICS AND COMPUTER SCIENCE
ICS 3111: MICROPROCESSORS
CONTINUOUS ASSESSMENT TEST I
Date: 26th May 2023
Time: 1HR
A set of memory units are listed below, determine the number of registers available per unit and the minimum number of address lines applicable to each unit.
a.2K4=2048
1mk
b.4K8=
c.1M44026,12
1mk
d.2M8
=1048526=20
1mk
1mk
Briefly explain the function of the following Intel 8085 components
a. Instruction decoder - Intepuets instmithes and concest into costar synd
b. Program counter - Tarks th exculor of pogram 2mks
As a computer engineer you are allocated a 324 memory units. Your company wants to embed to a home appliance a 9616 memory block. Design this configuration showing the number of address and data lines presentable for mass production.
4marks
What is the function of the following Intel 8085 control signals
a. ALE
2mks
b.10??bar (M)
2mks
How will the Intel 8085 microprocessor behave if the following
a. After consecutive register updates, the register contents becomes zero
1mk
b. There is a carry from bit 3 to bit 4 of the accumulator 1mk&C=1
c. Every time an opcode is executed
1mkPC=PC+
d. The stack pointer is initialized to 7FFFH and the PUSH command is executed
1mk
p=5p-1
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