Q.1
How to select register register bank 2 ?
  • SETB RS1 , SETB RS0
  • CLR RS1 , SETB RS0
  • SETB RS1 , CLR RS0
  • CLR RS1 , CLR RS0
Q.2
Each register bank consist of how many registers?
  • 10
  • 8
  • 4
  • 16
Q.3
How many timers are present in 8051
  • 2
  • 4
  • 1
Q.4
ROM memory size placed on chip?
  • 64Kbytes
  • 4Kbytes
  • 256 Bytes
  • 128 bytes
Q.5
Is Port 0 is Special Function Register?
  • TRUE
  • FALSE
Q.6
What is a Microcontroller
  • compact integrated circuit designed to govern a specific operation in an embedded system
  • a microship with I/O
  • A computer
  • Both A & B
Q.7
Microcontroller is
  • without memory
  • with memory
Q.8
NOP means
  • No operation
  • No operands
  • No object
  • New operation
Q.9
How many bytes of bit addressable memory is present inbased microcontrollers?
  • 8 bytes
  • 32 bytes
  • 16 bytes
  • 128 bytes
Q.10
series has how manybit registers
  • 2
  • 3
  • 1
  • 0
Q.11
Full form of PSW?
  • Program Settle word
  • Program Screen word
  • Program Status Word
Q.12
Whenwakes up then 0xis loaded to which register?
  • PSW
  • SP
  • PC
  • None of the mentioned
Q.13
ADC stand for?
  • Digital to Anlog converter
  • Analog to Digital converter
  • Analog Coverter
Q.14
On power up, theuses which RAM locations for register RR7
  • 00-2F
  • 00-07
  • 00-7F
  • 00-0F
Q.15
How many timers in 8051?
  • 1
  • 2
  • 3
  • 4
Q.16
GPIO Stands For:
  • general-purpose input/output
  • General- Purpose peripheral
  • General purpose in/out
  • General Purpose Digital/Analog
Q.17
Give the internal RAM size in 8051.
  • 8-bit
  • 1-Byte
  • 4 KB
  • 128 Byte
Q.18
microcontrollers are manufactured by which of the following companies?
  • Atmel
  • Philips
  • Intel
  • All of the mentioned
Q.19
If we push data onto the stack then the stack pointer
  • increases with every push
  • decreases with every push
  • increases & decreases with every push
  • none of the mentioned
Q.20
Program Counter inis
  • 8 bit wide
  • 16 bit wide
  • 20 bit wide
0 h : 0 m : 1 s