WorksheetsMPMC UNIT TEST - I
Total questions: 13
Worksheet time: 1hrs 4mins
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The word size of Intel 8051 microcontroller is _____. [CO1] [K1]
4-bit
8-bit
16-bit
32-bit
The size of the internal RAM memory of Intel 8051 is ____. [CO1] [K1]
4 KBytes
128 KBytes
256 Bytes
128 Bytes
Intel 8051 microcontroller have ____ Ports and each port has ____ pins. [CO1] [K1]
4 Ports & 4 Pins
8 Ports & 4 Pins
4 Ports & 8 pins
8 Ports & 8 Pins
Intel 8051 have ____ Timers and the size of each timer is ____. [CO1] [K1]
4 Timers & 8-bit
2 Timers & 16-bit
8 Timers & 16-bit
2 Timers & 8-bit
Which of the following serial communication interface is available in Intel 8051 internally? [CO1] [K1]
UART Protocol
I2C Protocol
SPI Protocol
CAN Protocol
Identify the following capability of Accumulator Register in Intel 8051. [CO2] [K2]
(Note: Multiple answers may be correct)
To perform all Arithmetic operation one of the operand must be stored in Accumulator Register
Accumulator points to the address of the next instruction
The result of all arithmetic operations done in ALU gets stored in Accumulator
Accumulator points to the top of the stack memory
Choose the following register(s) of Intel 8051 which must be used to perform multiplication and division operation. [CO3] [K2]
(Note: Multiple answers may be correct)
Accumulator (A)
Program Status Word (PSW)
Program Counter (PC)
B register
Identify the bit addessable Special Function Register(s) of Intel 8051 from the following. [CO2] [K2]
(Note: Multiple answers may be correct)
Accumulator (A) - E0H
Data Pointer (DPTR) - 82H & 83H
Stack Pointer (SP) - 81H
Program Status Word (PSW) - D0H
Consider an Intel 8051 based embedded system requires a program memory of 2KBytes and RAM memory of 56 Bytes. Suggest an optimal configuration to reduce the complexity of the system from the below options. [CO3] [K2]
EA =0
EA =1
PSEN =1
PSEN =0
Find the address range in the internal RAM memory of Intel 8051 which gets assigned as currently selected register bank for RS1=1 & RS0=1 in PSW register. [CO2] [K2]
00H - 07H
08H - 10H
18H - 20H
18H - 1FH
Consider the memory Organization of Intel 8051 and match the following. [CO2] [K2]
Internal RAM Memory Address Range
00H - FFH
Internal ROM Memory Address Range
0000H - 0FFFH
Bit Addressable locations in Internal RAM
20H - 2FH
Register Bank Area in Internal RAM
00H - 1FH
General Purpose Area in Internal RAM
30H - 7FH
Consider the addition of two 8-bit data X=79H & Y=88H is performed in Intel 8051. Identify the content of Accumulator (A) and Program Status Word (PSW) after Addition. Assume before addition the content of PSW register is 00H. [CO3] [k3]
(A)=01H &
(PSW)=05H
(A)=08H &
(PSW)=C5H
(A)=00H &
(PSW)=95H
(A)=01H &
(PSW)=C5H
(A)=67H &
(PSW)=C7H
