8085up

8085up

1. Buses

   • Address
   • Data
   • Control

2. Memory

   • Lower Order AD0-AD7
   • Higher order A8 -A15

3. Clock

   • - To change state - Synchnorization - to control speed of operation
   • X1
   • X2
   • clockout

4. Interrupts

   • H/W
     • TRAP
     • RST 7.5
     • RST 6.5
     • RST 5.5
     • INTR
       • INTA
   • S/W
   • Maskable
   • Non-maskable
     • TRAP

5. Serial comm.

   • SOD
   • SID

6. Reset

   • RESETIN
   • RESETOUT

7. Power

   • VCC
   • VSS

8. Ready

9. Control Signals

   • IO/M
   • RD
   • WR

10. Status Signals

    • S1
    • S0

11. DMA

    • HOLD
    • HLDA

12. ALE