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Worksheets8085 Microprocessor
Total questions: 25
Worksheet time: 16mins
How many bit data can be calculated by 8085 microprocessor
8 bit
16 bit
4 bit
64 bit
How much memory supported by 8085 microprocessor
1 GB
4 GB
64 KB
1 MB
Memory supported by microprocessor depend upon ............
control bus
address bus
data bus
all of above
How many flags in 8085 microprocessor architecture
5
2
6
8
Which flag is not used in programming
AC flag
Z flag
P flag
C flag
Size of ALU in 8085 microprocessor
4 bit
16 bit
8 bit
32 bit
LDA instruction function is
Load ALU
Load Flag
Load Accumulator
All of above
ADD B is
Airthmatic instruction
Logical instruction
Data tranfer instruction
None of above
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
What are the general purpose registers of 8085 microprocessors
In 8085 microprocessor, how many interrupts are maskable.
2
3
4
5
In the instruction of the 8085 microprocessor, how many bytes are present?
One or two
One, two or three
One only
Two or three
Which one of the following addressing technique is not used in 8085 microprocessor?
Register
Immediate
Register indirect
Relative
XCHG instruction of 8085 exchanges the content of ?
top of stack with contents of register pair
BC and DE register pairs
HL and DE register pairs
None of the above
following is a 16-bit register for 8085 microprocessor
Stack pointer
Accumulator
Register B
Register C
The register which holds the information about the nature of results of arithmetic of logic operations is called as
Accumulator
Condition code register
Flag register
Process status registers
. A bus connected between the CPU and the main memory that permits transfer of information between main memory and the CPU is known as
DMA bus
Memory bus
Address bus
Control bus
Program counter in a digital computer
counts the numbers of programs run in the machine ,
counts the number of times a subroutine is called
counts the number of times the loops are executed
points the memory address of the current or the next instruction to be executed
1st microprocessor was introduced in the year
1907
1945
1971
1973
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 clock frequency of 8085 microprocessor is
6.3 MHz
3.64 MHz
76.3 MHz
56.3 MHz
What is the full form of ALE?
All latch enable
All level enable
Address latch enable
None of these
