Microprocessor Assuming LSB is at position 0 and MSB at position 7, which bit positions are not used (Undefined) in flag register of an 8085 microprocessor? 1, 2, 5 2, 3, 5 1, 3, 4 1, 3, 5 1, 2, 5 2, 3, 5 1, 3, 4 1, 3, 5 ANSWER DOWNLOAD EXAMIANS APP
Microprocessor While STC instruction executes, all flags will be affected. no flags will be affected. only carry and zero flags will be affected. only carry flag will be affected. all flags will be affected. no flags will be affected. only carry and zero flags will be affected. only carry flag will be affected. ANSWER DOWNLOAD EXAMIANS APP
Microprocessor The content of the A15-A8 (higher order address lines) while executing “IN 8-bit port address” instruction are irrelevant same as the content of A7-A0 all bits set (i.e. FFH) all bits reset (i.e. 00H) irrelevant same as the content of A7-A0 all bits set (i.e. FFH) all bits reset (i.e. 00H) ANSWER DOWNLOAD EXAMIANS APP
Microprocessor The address bus of any microprocessor is always Unidirectional Either unidirectional or bi-directional None Bi-directional Unidirectional Either unidirectional or bi-directional None Bi-directional ANSWER DOWNLOAD EXAMIANS APP
Microprocessor Consider the following statements: Arithmetic Logic Unit (ALU) 1.Performs arithmetic operations 2.Performs comparisons. 3.Communicates with I/O devices 4.Keeps watch on the system Which of these statements are correct? 3 and 4 only 1, 2, 3 and 4 1, 2 and 3 1 and 2 only 3 and 4 only 1, 2, 3 and 4 1, 2 and 3 1 and 2 only ANSWER DOWNLOAD EXAMIANS APP
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