Capture Registers - SFRs in MCS-51 - MCQs with Answers

Capture Registers - SFRs in MCS-51 - MCQs with Answers

Q1. Which among the below stated registers does not belong to the category of special function registers?

a. TCON & TMOD
b. TH0 & TL0
c. P0 & P1
d. SP & PC

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Q2. Which timer is attributed to the register pair of RCAP2H & RCAP2L for capture mode operation?

a. Timer 0
b. Timer 1
c. Timer 2
d. Timer 3

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Q3. Which registers are supposed to get copied into RCAP2H & RCAP2L respectively due to the transition at 8052 T2EX pin in the capture mode operation?

a. TH0 & TH1
b. TH1 & TH1
c. TH2 & TH2
d. All of the above

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Q4. Which mode of timer 2 allow to hold the reload values with an assistance of RCAP2H & RCAP2L register pair?

a. 8 bit auto-reload mode
b. 16 bit auto reload mode
c. 8 bit capture mode
d. 16 bit capture mode

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