Pdemodule 4

Digital Computer ,[object Object],Input ALU Control Unit Memory Output

Microcomputer ,[object Object],Reg. Array Control Microprocessor Memory System Bus ALU Reg. Array Control Unit Input Output ROM R/WM

Microprocessor ,[object Object],[object Object],[object Object],[object Object],[object Object]

Microprocessor initiated operations ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Bus Structure Control Bus Address Bus ALU Reg. Array Control Unit Input Output Memory Data Bus

Internal Data Operations ,[object Object],[object Object],[object Object],[object Object],[object Object]

Peripheral Initiated operations ,[object Object],[object Object],[object Object],[object Object]

8085 Microprocessor ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

8085 Microprocessor ,[object Object],[object Object],[object Object],[object Object]

8085 Microprocessor ,[object Object]

Functional Description of 8085 ,[object Object],[object Object],[object Object]

Functional Description of 8085 ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Interrupts ,[object Object],[object Object],[object Object],[object Object],[object Object]

Registers ,[object Object],[object Object],[object Object],[object Object]

Accumulator ,[object Object],[object Object],[object Object],[object Object]

Flags ,[object Object],[object Object],S Z AC P CY

Program Counter (PC) ,[object Object],[object Object]

Stack Pointer (SP) ,[object Object],[object Object]

Instruction ,[object Object],[object Object]

Instruction word size ,[object Object],[object Object],[object Object],[object Object]

One-Byte Instructions ,[object Object],[object Object],Task Opcode Operand Hex Code Copy contents of accumulator to C register MOV C,A 4F Add the contents of accumulator to B ADD B 80

Two-Byte Instructions ,[object Object],[object Object],[object Object],Task Opcode Operand Hex Code Load an 8-bit data byte in the accumulator. MVI A, Data 3E-First data Data-Second data

Three-Byte Instructions ,[object Object],[object Object],[object Object],Task Opcode Operand Hex Code Transfer the Program sequence to the memory Location 2043H. JMP 2043H C3-First byte 43-second byte 20-third byte

Addressing Modes ,[object Object],[object Object],[object Object],[object Object],[object Object]

The 8085 Addressing Modes ,[object Object],[object Object],[object Object],[object Object],[object Object]

Immediate addressing ,[object Object],[object Object],[object Object]

Register addressing ,[object Object],[object Object]

Direct addressing ,[object Object],[object Object],[object Object]

Indirect Addressing ,[object Object],[object Object],[object Object]

Implicit Addressing ,[object Object],[object Object],[object Object]

Instruction Set of 8085 ,[object Object],[object Object],[object Object]

Instruction Set of 8085 ,[object Object],[object Object]

Data Transfer Operation ,[object Object],[object Object],[object Object],[object Object]

Pdemodule 4

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Pdemodule 4