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WorksheetsA1 MPMC
Total questions: 15
Worksheet time: 8mins
Number of address lines in 8085 are
8
12
16
24
MOVX, DPTR,#4500
WHAT IS THE TYPE OF ADDRESSING MODE OF ABOVE INSTRUCTION
DIRECT
INDIRECT
IMMEDIATE
REGISTER
choose the correct instruction to store contents of H register to 2201 and L register to 2200 memory location respectively
LHLD 2200
SHLD 2200
LXI, H 2201
SHLD 2201
if A= 05 and B=02
CMP B
after exceting above instruction content of accumulator will be
0
2
3
5
RAL is used for
Rotate contents of accumulator to right through carry
Rotate contents of accumulator to right
Rotate contents of accumulator to left through carry
Rotate contents of accumulator to left
JNZ label
the above instruction is used to
Jump to label
Jump to label if zero flag is set
Jump to label if zero flag is not set
Jump to label if carry flag is set
Number of PORTs available in 8255 IC is
2
3
4
none of this option listed
Function of ALE pin in ADC is
to start conversion
to select channel
to end conversion
to latch selected channel
Size of DPTR register is ..............bits
8
12
16
24
MOV A,@R0 this is an example of ............................addressing mode
Register
Direct
Register Indirect
immediate
Name microcontroller used in Arduino UNO board
8085
8051
Atmega328p
8086
Which interrupt of 8085 has highest priority?
RST 5.5
RST 6.5
RST 7.5
TRAP
if A=08 , after executing following instruction, the result Accumulator is ...........
XRA A
08
02
0A
00
In 8051 MOVX instruction is used to access
Program memory
data memory
SFR
external data memory
MOV A,B is a ....................................byte instruction
1
2
3
4
