Serial Communication & SCON Register of 8051 - MCQs with Answers
Q1. Why is it not necessary to specify the baud rate to be equal to the number of bits per second ?A. Because each bit is preceded by a start bit & followed by one stop bit
B. Because each byte is preceded by a start byte & followed by one stop byte
C. Because each byte is preceded by a start bit & followed by one stop bit
D. Because each bit is preceded by a start byte &followed by one stop byte
View Answer / Hide Answer ANSWER: C. Because each byte is preceded by a start bit & followed by one stop bit
Q2. Which factor/s is/are supposed to have the equal values at both phases of transmission and reception levels with an intimation of error-free serial communication?a. Baud Rate
b. Number of data bits & stop bits
c. Status of Parity bits
d. All of the above
View Answer / Hide Answer ANSWER: d. All of the above
Q3. Which bits exhibit and signify the termination phase of the character transmission and reception in SCON special function register?a. Control bits
b. Status bits
c. Both a & b
d. None of the above
View Answer / Hide Answer
