INTERNAL STRUCTURE OF INTEL 8085

Internal structure of 8085:
                                                   The functional block diagram of 8085

It consists of five essential blocks.

(1)    ARITHMETIC LOGIC SECTION

(2)     REGISTER SECTION

(3)     THE INTERRUPT CONTROL SECTION

(4)     SERIAL I/O SECTION

(5)     THE TIMING AND CONTROL UNIT

 ACCUMULATION (A): It is a 8 bit tri state register accessible to the user. Its tri state output is connected to the internal bus in addition, it has a two state 8 bit output. The content of the accumulator is always available at this two state output as the accumulator can be manipulated

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Posted in 8085 microprocessor, ARITHMETIC LOGIC SECTION, Internal structure of 8085, REGISTER SECTION, SERIAL I/O, STRUCTURE OF INTEL 8085, THE INTERRUPT CONTROL, THE TIMING AND CONTROL UNIT