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? 1, 2 and 3 3 and 4 only 1 and 2 only 1, 2, 3 and 4 1, 2 and 3 3 and 4 only 1 and 2 only 1, 2, 3 and 4 ANSWER DOWNLOAD EXAMIANS APP
Microprocessor Assertion(A): The frequency of 8085 system is ½ of the crystal frequency. Reason(R): Microprocessor (8085) requires a two phase clock. A is true but R is false Both A & R are true but R is not the correct explanation of A Both A & R are true and R is the correct explanation of A A is false but R is true A is true but R is false Both A & R are true but R is not the correct explanation of A Both A & R are true and R is the correct explanation of A A is false but R is true ANSWER DOWNLOAD EXAMIANS APP
Microprocessor A microprocessor differentiates between op code, data/address at any time by the stack pointer the program counter the sequence in which memory contents are fetched by it its internal registers the stack pointer the program counter the sequence in which memory contents are fetched by it its internal registers ANSWER DOWNLOAD EXAMIANS APP
Microprocessor In 8085 microprocessor system with memory mapped I/O, which of the following is true? Devices are accessed using IN and OUT instructions Arithmetic and logic operations can be directly performed with the I/O data There can be maximum of 256 input devices and 256 output devices Devices have 8-bit address line Devices are accessed using IN and OUT instructions Arithmetic and logic operations can be directly performed with the I/O data There can be maximum of 256 input devices and 256 output devices Devices have 8-bit address line ANSWER DOWNLOAD EXAMIANS APP
Microprocessor While CMP B instruction executes, 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. all flags will be affected. ANSWER DOWNLOAD EXAMIANS APP
Microprocessor In 8085 microprocessor which one of the following statement is wrong serial I/O is possible through SIM and RIM instruction there is a pin available for serial output serial I/O is not possible there is a pin available for serial input serial I/O is possible through SIM and RIM instruction there is a pin available for serial output serial I/O is not possible there is a pin available for serial input ANSWER DOWNLOAD EXAMIANS APP
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