Skip to main content

Machine Cycle, T- State in 8085 Microprocessor

Machine Cycle in 8085 Microprocessor

  • The necessary steps carried out to perform the operation or accessing either memory or  i/o device, constitutes a Machine Cycle.
  • In other words, necessary steps carried out to perform a fetch, a read or a write operation constitute a Machine Cycle.

T- State in Machine Cycle:

  • One subdivision of an operation perform in one clock cycle is called T - State.


Comments

Popular posts from this blog

Arithmetic Group Instruction Set of 8085 Microprocessor | ADD, ADC, ACI, ADI, DAD, SUB, SBB, SUI, DCR, INR, INX, DCX instruction

Arithmetic Group of 8085 Microprocessor ADD r The data in Accumulator and entered register will get added and the result will copy to Accumulator                                      Example -  ADD B                                                     (A) + (B)  ⇢   (A)     ADD M The data in Accumulator and data in the memory location pointed by HL pair will get added and the result will copy to Accumulator.                                  Example -  ADD M          ...

Instruction Set and their types, Functions with examples and Addressing Models of 8085 Microprocessor

Instruction Set of 8085 Microprocessor An instruction is a command given to the computer to perform a specified operation on the given data. In 8085 microprocessor, the instructions are classified into five (5) groups. They are, Data Transfer Group  Arithmetic Group Logical Group Branch Control Group I/O and Machine Control Group Addressing Models: Each instruction requires certain data on which it has to operate. In Intel 8085 Microprocessor, there are 4 types of addressing mode. More on Addressing Models>>> Data Transfer Group MOV r1, r2 This means the data of register - 2 will move to register - 1                                         Example - MOV A, B MOV r, M This means the data stored in ((H - L)) will move to the specified register.                   ...

Logical Group Instruction Set of 8085 Microprocessor | ANA, ANI, ORA, ORI, XRA, XRI, CMA, CMC, STC, CMP, RLC, RAL, RRC, RAR instruction examples

Logical Group These Logical group instructions are used in the 8085 Microprocessor program. In this article, you would get the instructions with example. In some sections, referring images are also provided to make your understanding crystal clear. ANA r Here the data of r AND (Logical AND) with the data of Accumulator and the result will store in Accumulator.                                  Example -   ANA B                                                      (B) ⋀ (A) ⟶ (A)                                          ...