Keyboard / Display - 8279 SNS COLLEGE OF ENGINEERING * The INTEL 8279 is specially developed for interfacing keyboard and display devices to 8085/8086 microprocessor based System. 1 S.NATARAJAN/MPMC/I/O & MEMORY INTEFACING / unit -3 System. Features of 8279 * Simultaneous keyboard and display Operations •Scanned keyboard mode • Scanned sensor mode •8-character keyboard FIFO • 1 6-character display
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Keyboard / Display - 8279SNS COLLEGE OF ENGINEERING* The INTEL 8279 is specially developedfor interfacing keyboard and display devicesto 8085/8086 microprocessor basedSystem. 1S.NATARAJAN/MPMC/I/O & MEMORY INTEFACING / unit -3 System.Features of 8279* Simultaneous keyboard and display Operations•Scanned keyboard mode• Scanned sensor mode•8-character keyboard FIFO• 1 6-character display
SNS COLLEGE OF ENGINEERINGS.NATARAJAN/MPMC/I/O & MEMORY INTEFACING / unit -3 2
Important BlockSNS COLLEGE OF ENGINEERING•Keyboard section• Display section• Scan section S.NATARAJAN/MPMC/I/O & MEMORY INTEFACING / unit -3 • Scan section• CPU interface section 3
SNS COLLEGE OF ENGINEERINGS.NATARAJAN/MPMC/I/O & MEMORY INTEFACING / unit -3 4
SNS COLLEGE OF ENGINEERINGS.NATARAJAN/MPMC/I/O & MEMORY INTEFACING / unit -3 5
Important BlockSNS COLLEGE OF ENGINEERINGS.NATARAJAN/MPMC/I/O & MEMORY INTEFACING / unit -3 6
Display SectionSNS COLLEGE OF ENGINEERINGS.NATARAJAN/MPMC/I/O & MEMORY INTEFACING / unit -3 7
Scan SectionSNS COLLEGE OF ENGINEERINGS.NATARAJAN/MPMC/I/O & MEMORY INTEFACING / unit -3 8
CPU Interface SectionSNS COLLEGE OF ENGINEERINGS.NATARAJAN/MPMC/I/O & MEMORY INTEFACING / unit -3 9
CPU Interface SectionSNS COLLEGE OF ENGINEERINGS.NATARAJAN/MPMC/I/O & MEMORY INTEFACING / unit -3 10
Command wordSNS COLLEGE OF ENGINEERINGS.NATARAJAN/MPMC/I/O & MEMORY INTEFACING / unit -3 11
Command word for KeyboardSNS COLLEGE OF ENGINEERINGS.NATARAJAN/MPMC/I/O & MEMORY INTEFACING / unit -3 12