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Which of the following signal control the flow of data?

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in Microcontroller by (14.6k points)
Which of the following signal control the flow of data?

(a) RTS

(b) DTR

(c) RTS & DTR

(d) None of the mentioned

This question was posed to me in exam.

Question is taken from Serial Port Communication topic in chapter 8051 Microcontroller of Microcontroller

1 Answer

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by (24.2k points)
Correct option is (a) RTS

To explain: RTS is a request to send control signal which is a control for the flow of data. On the other hand DTR is a Data Terminal Ready control signal which tells about the current status of the DTE.

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