PRESENTATION ON

ANIMATED WORKING OF OF 8085{MICRO PROJECT}

Subject:MPMCA:Y:2014-15

Faculty Name:S.V.S PRASAD

OBJECTIVE• The main objective of this project is to explain

how the ADDITION program for 8085 is executed internally all functional blocks of 8085.

• Architecture, like how the program instructions are converted to machine codes and how it is placed in stack and how it is decoding and processing etc.

TEAM MEMBERSHT.NO NAME DEPARTMENT/YEAR

12R21A04A1 SRAVYA 3rd ECE

12R21A0498 M.POOJA 3rd ECE

12R21A0477 G.PRASHANTH 3rd ECE

SPECIFICATIONS• HARDWARE:• 1.8085 MICRO PROCESSOR• 1.PERSONAL COMPUTER WITH WINDOWS XP/2000

ARCHITECTURE OF 8085

FEATURES OF 8051• 16-bit Program Counter• 8-bit Processor • 16-bit Stack Pointer• It is capable to allocate 64kb externally• It consists of 6 8_bit registers• It has clock frequency of 1.2MHz• It consists of flag register• It supports 5 interrupt

ADDRESSING MODES• There are five addressing modes in 8085.• Immediate Addressing Mode: - An

immediate is transferred directly to the register.

• Register Addressing Mode: - Data is copied from one register to another register.

• Direct Addressing Mode: - Data is directly copied from the given address to the register.

ADDRESSING MODES

• Indirect Addressing Mode: - The data is transferred from the address pointed by the data in a register to other register.

• Implied Addressing Mode: - This mode doesn't require any operand. The data is specified by opcode itself.

BUSES PRESENT IN 8085

• There are three buses in Microprocessor:1.Address Bus2.Data Bus3.Control Bus

• Address Bus:-Genearlly, Microprocessor has 16 bit address bus. The bus over which the CPU sends out the address of the memory location

• Data Bus:-8085 Microprocessor has 8 bit data bus. So it can be used to carry the 8 bit data

• Control Bus:-The control bus is used for sending control signals to the memory and I/O devices.

EXPLANATION OF ADDITION PROGRAM IN 8085

OBSERVATION• In this video we can observe how each

instruction is internally executed in the architechture 8085 microprocessor .

APPLICATIONS• Calculators• Digital computer

CONCLUSION• By this video we get know about internal

architecture of 8085 micro processor and program gets executed