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Basic I/O Interface

Basic I/O Interface. Instruksi I/O IN OUT INS OUTS. Isolated dan Memory Mapped I/O. Basic Input dan Output Interface. I/O Port Address Decoding I/O port address decoding = memory address decoding

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Basic I/O Interface

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  1. Basic I/O Interface

  2. Instruksi I/O • IN • OUT • INS • OUTS

  3. Isolated dan Memory Mapped I/O

  4. Basic Input dan Output Interface

  5. I/O Port Address Decoding • I/O port address decoding = memory address decoding • The main difference between memory decoding and isolated I/O decoding is the number of address pins connected to the decoder. • Untukmemori : A32-A0, A23- A0atau A19- A0 • Untuk I/O addressing : A7- A0

  6. Decoding 8-Bit I/O Port Addresses

  7. The Programmable Peripheral Interface (PPI) – 82C55 A B B A

  8. Mode Operasi • Mode 0 • Mode 1 • Mode 2

  9. Common Byte A Common Byte B

  10. Buatlahrangkaian I/O interface untuk 8 buah I/O yang ingindiaksespada port 70H – 77H • Buatlahrangkaian 82C55 yang dihubungkankemikroprosesorpada port F0H, F4H, F8H, FCH

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