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Worksheets8051 microcontroller basics
Total questions: 10
Worksheet time: 5mins
Name
Class
Date
1.
Full form of PSW?
a)
Program Settle word
b)
Program Screen word
c)
Program Status Word
2.
ROM memory size placed on chip?
a)
64Kbytes
b)
4Kbytes
c)
256 Bytes
d)
128 bytes
3.
How many timers are present in 8051
a)
2
b)
4
c)
1
4.
Is Port 0 is Special Function Register?
a)
TRUE
b)
FALSE
5.
How many SFR registers are present in memory
a)
10
b)
12
c)
11
d)
21
6.
what is PROGRAM COUNTER (PC)?
a)
holds the address of memory,where next executable instruction placed
b)
holds the data of memory
c)
16- bit register
d)
it is a memory pointer
7.
which port is used only for INPUT/OUTPUT operation?
a)
PORT 0
b)
PORT 1
c)
PORT 2
d)
PORT 3
8.
PIN number of Vcc (supply)?
a)
1
b)
20
c)
40
d)
10
9.
8051 microcontroller has ONE or TWO bit handling instrucions?
a)
FALSE
b)
TRUE
10.
EA is held _____ , to access external ROM
a)
HIGH
b)
LOW
Reset
