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If the data is transmitted only in one direction over a single communication channel, then it is of

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If the data is transmitted only in one direction over a single communication channel, then it is of

(a) simplex mode

(b) duplex mode

(c) semi duplex mode

(d) half duplex mode

I got this question by my school teacher while I was bunking the class.

Enquiry is from Programmable Communication Interface 8251 USART topic in chapter Special Purpose Programmable Peripheral devices and their Interfacing of Microprocessor

1 Answer

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by (49.2k points)
Right answer is (a) simplex mode

The explanation is: In simplex mode, the data transmission is unidirectional. For example, a CPU may transmit data for a CRT display unit in this mode.

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