WorksheetsMPMC End Sem Practical
Total questions: 18
Worksheet time: 14mins
Identify the instruction that belong to indirect addressing
MOV A,M
MVI A,05
LXI H 0000
MOV A,20
LDA 4300 is a
3 Byte Direct Addressing
Immediate Addressing
3 Byte instruction
Indirect Addressing
What is the size of ROM used in 8051
256 bytes
6 kb
4kB
2kB
CISC stands for
Complex instruction software code
Complex instruction set code
Complex instruction set computer
Complex instruction software code
Out of the following which storage is faster
Hard disk
RAM
Pendrive
RAM
Out of the following, which microcontroller has 8kB of ROM
Intel 80C51BH
Intel 8051AH
Intel 8052AH
Intel 8051
A __________ embedded system performs a task in a defined time interval.
Stand alone
Real-Time
Mobile
Networked
When the microcontroller executes some arithmetic operations, then the flag bits of which register are affected?
PC
DPTR
SP
PSW
____ is a negative edge triggered external interrupt in an 8051 microcontroller.
TF0
INT0
TF1
R1/T1
The I/O port that does not have a dual-purpose role is:
PORT 1
PORT 2
PORT 3
PORT 4
How does the microcontroller communicate with the external peripherals?
through I/O ports
through register arrays
through memory
through accumulator
In DAC, resolution increases with the _________ in number of bits.
Increase
Decrease
Constant
8 input DAC has ________
124 discrete voltage levels
64 discrete voltage levels
8 discrete voltage levels
256 discrete voltage levels
The 8051 has ________ 16-bit counter/timers
4
5
2
3
An alternate function of port pin P3.4 in the 8051 is:
Interrupt 0
Interrupt 1
Timer 1
Timer 0
When both the control inputs (A and B) for the H-bridge motor driver are high/low, the state of the DC motor will __________
No Change
Stop
Rotate Forward
Rotate Reverse
Auto reload mode is allowed in which mode of the timer?
Mode 3
Mode 0
Mode 2
Mode 1
IN ADC the INTR signal is a ____________
Input pin
Output Pin
Supply Pin
Ground Pin
