Bus Sturucture of 8085

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Architecture Diagram of 8085
Microprocessor
This is the functional block diagram of
the 8085 Microprocessor. This is the
function al Block Diagram of 8085
Microprocessor. Acum...
Pin Diagram of 8085 Microprocessor
with Description
8085 is a general purpose microprocessor
having 40 pins and works on single
power supply. To study the pin diagram
we group the signals ...
All Addressing Modes in 8085
Microprocessor With Example
Addressing Modes in 8085 There are five
addressing modes in 8085. 1. Immediate
Addressing Mode: ­ An immediate is
transferred directly ...
8085MicroprocessorCompleteTutorial type your search and hit enter
Friday, 7 December 2012
Bus Structure Of 8085 Microprocessor
There are three buses in Microprocessor:
1.Address Bus
2.Data Bus
3.Control Bus

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Applications Of Microprocessor in
General Life
There are a lot of applications of
Microprocessor in general life.Some of
the applications are given below: Mobile
Phones Digital Watch...
Difference Between
Address Bus vs Data Bus
of 8085 Microprocessor
According to computer
architecture, a bus is
defined as a system that
transfers data between hardware
components of a computer or betwee...
Bus Structure Of 8085 Microprocessor
There are three buses in Microprocessor:
1.Address Bus 2.Data Bus 3.Control Bus
1.Address Bus:­Genearlly,
Mic...
Hardware Interrupts in 8085......
(Interrupts Contd)........
Hardware Interrupt:­ As i have already
discussed that there are 6 interrupt pins
in the microprocessor used as Hardware
Interrrupts given...
Software Interrupts in 8085.....(Interrupt
Contd..)
Software Interrupts:­ A software
interrupts is a particular instructions that
can be inserted into the desired location
in the rpogram. T...
Memory Interfacing Using RAM and
ROM both with 8085 Microprocessor
Interfacing RAM and ROM both at a time
with 8085: Here ROM with 32 kb and
RAM with 64kb has been used. 32kb =
32768bytes is equal ...
Interrupts in 8085 Microprocessor
First of all i want to discuss that what is
1.Address Bus:­Genearlly, Microprocessor has 16 bit address bus. The
bus over which the CPU sends out the address of the memory location is
known as Address bus. The address bus carries the address of memory
location to be written or to be read from.
The address bus is unidirectional. It means bits flowing occurs only in
one direction, only from microprocessor to peripheral devices.
We can find that how much memory location it can using the formula
2^N. where N is the number of bits used for address lines.
here, 2^16 = 65536bytes or 64Kb
So we can say that it can access upto 64 kb memory location.
Q.>If a processor has 4 GB memory then how many address lines are
required to access this memory?
Ans: 4GB= 4 * 1GB
4 = 2^2
1GB = 2^30

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Interrupt??????? Interrupt is a
mechanism by which an I/O or an
instruction can suspend the ...
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Hardware Interrupts in 8085......
(Interrupts Contd...
Software Interrupts in 8085.....
(Interrupt Contd.....
Interrupts in 8085 Microprocessor
Memory Interfacing Using RAM
and ROM both with 808...
Memory Interfacing in 8085
Microprocessor
Representation of signals in Timing
Diagram Of 808...
Some Short Questions Self Test
How to Demultiplex Address and
Data Bus
All Addressing Modes in 8085
Microprocessor With E...
Pin Diagram of 8085
Microprocessor with Descriptio...
Microcomputers and
Microprocessor
Difference Between Address Bus vs
Data Bus of 808...
Bus Structure Of 8085
4GB = 2^2 * 2^30 = 2^32
So 32 address lines are required to access the 4 GB memory.
2.Data Bus:­8085 Microprocessor has 8 bit data bus. So it can be used to
carry the 8 bit data starting from 00000000H(00H) to 11111111H(FFH).
Here 'H' tells the Hexadecimal Number. It is bidirectional. These lines
are used for data flowing in both direction means data can be
transferred or can be received through these lines. The data bus also
connects the I/O ports and CPU. The largest number that can appear on
the data bus is 11111111.
It has 8 parallel lines of data bus. So it can access upto 2^8 = 256 data
bus lines.
3.Control Bus:­The control bus is used for sending control signals to the
memory and I/O devices. The CPU sends control signal on the control
bus to enable the outputs of addressed memory devices or I/O port
devices.
Some of the control bus signals are as follows:
1.Memory read
2.Memory write
3.I/O read
4.I/O write.
Posted by imaad khan at 11:56

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