INTRODUCTION TO MICROPEOCESSOR
MICROCOMPUTER SYSTEM
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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It is a 28-pin chip capable of doing both asynchronous and synchronous serial data communication.
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8251A
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8251
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8237
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8259A
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Explanation:
Detailed explanation-1: -In “synchronous mode, ‘’ the baud rate will be the same as the frequency of TXC. In “asynchronous mode", it is possible to select the baud rate factor by mode instruction. It can be 1, 1/16 or 1/64 the TXC. The falling edge of TXC sifts the serial data out of the 8251.
Detailed explanation-2: -The 8251 is a Universal Synchronous/Asynchronous Receiver/Transmitter (USART) packaged in a 28-pin DIP made by Intel. It is typically used for serial communication and was rated for 19.2 kilobits per second signalling rate.
Detailed explanation-3: -Explanation: Basically, there are three modes of data transmission. simplex, duplex and half duplex.
There is 1 question to complete.