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TF1, TR1, TF0, TR0 bits are of which register?

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in Microcontroller by (14.6k points)
TF1, TR1, TF0, TR0 bits are of which register?

(a) TMOD

(b) SCON

(c) TCON

(d) SMOD

I had been asked this question in an international level competition.

I'm obligated to ask this question of Timer Programming topic in division 8051 Microcontroller of Microcontroller

1 Answer

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by (24.2k points)
The correct choice is (c) TCON

Explanation: All of these bits are part of TCON (Timer Control) register. TF0 and TF1 are used to check overflow of timer 0 and timer 1 respectively. TR0 and TR1 are timer control bits used to start and stop of timer 0 and timer 1 respectively.

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