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Oleh : Drs. Edidas , MT

PROGRAMABLE PERIPHERAL INTERFACE (PPI). Oleh : Drs. Edidas , MT. Bentuk Phisik IC PPI 8255. Pin Out Chip PPI 8255. Kartu PPI 8255. Diagram Blok PPI 8255. Diagram Blok PPI 8255 (2). Control Word PPI 8255. Dasar Operasi PPI 8255. Pengalamatan PPI 8255. D ecoder alamat IC 74138.

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Oleh : Drs. Edidas , MT

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  1. PROGRAMABLE PERIPHERAL INTERFACE (PPI) Oleh : Drs. Edidas, MT

  2. BentukPhisik IC PPI 8255

  3. Pin Out Chip PPI 8255

  4. Kartu PPI 8255

  5. Diagram Blok PPI 8255

  6. Diagram Blok PPI 8255 (2)

  7. Control Word PPI 8255

  8. DasarOperasi PPI 8255

  9. Pengalamatan PPI 8255

  10. Decoder alamat IC 74138

  11. LangkahPemrograman PPI 8255 • PasangkanPPI 8255 Card pada Slot Komputer • Pasangkanbeban : Rangkaian LED Display • Ujicoba PPI dengan program cepatpadalayar debug debug sepertidibawahini.

  12. Pemrograman PPI Program Uji PPI Port A= Output -a100 136B:0100 Mov dx,303 ; Alamat Port Control 136B:0103 Mov al,80 ; Control Word 136B:0105 Out dx,al 136B:0106 Mov dx,300 ; Alamat Port A 136B:0109 Moval,ff ; data yang akandiproses 136B:010B Out dx,al 136B:010C Int 20 ; Berhenti (selesai)

  13. PEMPROGMAN Port C Sebagai Input • Contoh 2: • Mamasukkan data dari Port C keProsesor • Mov dx,303 • Mov al,89 • Out dx,al • Mov dx,302 • In al,dx • Int 20

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