INTRODUCTION TO MICROPEOCESSOR
MICROCOMPUTER SYSTEM
Question
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This is an 8279 pin configurations that selects data (logic 0) or control (logic 1) for read and write between the microprocessor and 8279.
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AO
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BD
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CLK
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CN/ST CS
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Explanation:
Detailed explanation-1: -Scanned Sensor Matrix : In this mode, a sensor array can be interfaced with 8279 using either encoded or decoded scans.
Detailed explanation-2: -Display Scan: The 8279 generates 8 or 16 characters multiplexed displays that are organized in either dual 4-bit or single 8-bit display units. Display Entry: The data which gets displayed can be either displayed starting from either the right side or left side.
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