MICROPROCESSOR AND
MICROCONTROLLER
SSI < 10
Components
MSI 10-100 Components
LSI 100-10K Components
VLSI >10K Components
Block
digram of computer
 |
| Block digram of computer |
MICROPROCESSOR
It is a semiconductor component designed by using
VLSI technology,it contains ALU,CU and resisters of a CPU in a single package.
 |
| Microprocessor |
 |
| microprocessor feature |
Microprocessor
Work
The microprocessor follows a sequence: Fetch, Decode, and
then Execute.
Initially,
the instructions are stored in the memory in a sequential order. The
microprocessor fetches those instructions from the memory, then decodes it and
executes those instructions till STOP instruction is reached. Later, it sends
the result in binary to the output port. Between these processes, the register
stores the temporarily data and ALU performs the computing functions.
Basic
operation of microprocessor
·
Opcode
Fetch
·
M/M
Read
·
M/M
Write
·
I/O
Read
·
I/O
Write
 |
| operation of microprocessor |
Operation are also known as Machine Cycle.
MICROCONTROLLER
A microcontroller is
a compact integrated circuit designed to govern a specific operation in an
embedded system. A typical microcontroller includes a
processor, memory and input/output (I/O) peripherals on a single chip.
 |
| microcontroller |
 |
| microcontroller feature |
Difference
Between Microprocessor and Microcontroller:-
MICROPROCESSOR
|
MICROCONTROLLER
|
It has ALU,CU
& Resisters
|
It
has ALU,CU & Resisters
|
No
Internal Memory
|
It
has Internal Memory
|
No
Interfacing Circuit,Timers and Counters
|
It
has Interfacing Circuit,Timers
and
Counters
|
Used for
general Purpose
|
Used
for Specific Purpose
|
Eg. Personal
Computer
|
Eg.
Microwave Oven,Digital Camera,Washing Machineie
|
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