1. Microprocessor 8085

3. Microprocessor is central processing unit(CPU) of a computer.

4. It is the heart of the computer.

6. Timing & Control Unit

8. Status Flag of Intel 8085 0 1 2 3 4 5 6 7 BIT NO. S Z X AC X P X CS STATUS FLAGS UNDEFINED BITS CARRY STATUS PARITY STATUS AUXILIARY CARRY STATUS ZERO STATUS SIGN STATUS

9. PIN CONFIGRATION OF INTEL 8085 MICROPROCESSOR INTEL 8085 VSS AD0 – AD7 VCC A8 – A15 X1 X2 CLK ( OUT ) CLK ( OUT ) ---------- RESET IN HOLD RESET OUT -- IO/ M HLDA So TRAP S1 -- RD RST 7.5 -- WR RST 6.5 ALE RST 5.5 SID INTR SOD ----- INTA READY