INTRODUCTION TO MICROPEOCESSOR
MICROCOMPUTER SYSTEM
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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This is an8279 pin configuration that consists of bi-directional pins that connected to data bus on microprocessor
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Clock
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Control/Strobe
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DB7-DB0
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Interrupt Request
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Explanation:
Detailed explanation-1: -The Intel 8279 is a keyboard and display controller developed for interfacing to Intel 8085, 8086 and 8088 microprocessors.
Detailed explanation-2: -The four major sections of 8279 are keyboard, scan, display and CPU interface. Keyboard section: The keyboard section consists of eight return lines RL0 – RL7 that can be used to form the columns of a keyboard matrix. It has two additional input : shift and control/strobe.
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