WorksheetsMVIT 8085
Total questions: 20
Worksheet time: 20mins
8085 microprocessor has
30 pins
40 pins
50 pins
20 pins
The clock frequency of 8085 microprocesssor
2 MHz
3 MHz
2 KHz
3KHz
Which of the following are the Interrupt pins of 8085 microprocessor
RST 7.5
OUT
VCC
ALE
The addressing memory capacity of 8085 microprocessor
64 KB
64 GB
64 BB
64 MB
Which of the them is not a Flag in 8085 microprocessor
Trap Flag
Carry Flag
Sign Flag
Zero Flag
Which of the following interrupts has highest priority
RST 7.5
RST 5.5
RST 6.5
TRAP
The size of the Data bus in 8085 microprocessor
4 bit wide
8 bit wide
16 bit wide
32 bit
Which of the following registers are not accessible to the user for storing data
B Register
Program Counter
Temporary Register
H-L Pair Register
The microprocessor internal architecture has ports and internal memory
Yes
No
An 8 bit microprocessor has ----
Address bus
16
8
19
10
An 8 bit microprocessor has ---data bus
16
8
19
10
Microprocessor consists of
ALU
Address bus
Data bus
All
The total number of status flags in 8085 microprocessor is
4
8
7
5
In 8085 microprocessor the stack pointer is a register of
2 bit
16 bit
5 bit
8 bit
What is the full form of ALE?
All latch enable
All level enable
Address latch enable
None of these
An 8 bit microprocessor signifies that it has
An 8 bit address bus
An 8 bit control bus
An 8 bit internal line
An 8 bit data bus
In RAL Instruction
Carry flag is placed
in the least significant position D0
Carry flag is placed
in the Most significant position D7
Carry flag is placed
in the position D1
Carry flag is placed
in the position D2
In RRC instruction
CY is modified according to bit D0.
CY is modified according to bit D7.
CY is modified according to bit CY.
CY is modified according to bit D2.
In CMP Instruction
A>R: CY=0
A=R: ZF=1
A<R: CY=1
A>R: CY=1
A=R: ZF=0
A<R: CY=0
A>R: CY=0
A=R: ZF=1
A<R: CY=0
A>R: CY=0
A=R: ZF=0
A<R: CY=1
LHLD -
This instruction copies the contents of memory location pointed out by 16-bit address into register L and contents of next memory location into register H.
The contents of accumulator are copied into the
memory location specified by the operand.
The contents of accumulator are copied into the
memory location specified by the contents of the
register pair.
The contents of register L are exchanged with the
contents of register E.
