Microprocessor In an intel 8085A, which is the first machine cycle of an instruction? A memory read cycle An op-code fetch cycle A memory write cycle An I/O read cycle A memory read cycle An op-code fetch cycle A memory write cycle An I/O read cycle ANSWER DOWNLOAD EXAMIANS APP
Microprocessor The content of the A15-A8 (higher order address lines) while executing “IN 8-bit port address” instruction are 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) irrelevant ANSWER DOWNLOAD EXAMIANS APP
Microprocessor A microcomputer consists of All of these a microprocessor memory I/O device All of these a microprocessor memory I/O device 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 false but R is true Both A & R are true and R is the correct explanation of A A is true but R is false Both A & R are true but R is not the correct explanation of A A is false but R is true Both A & R are true and R is the correct explanation of A A is true but R is false Both A & R are true but R is not the correct explanation of A ANSWER DOWNLOAD EXAMIANS APP
Microprocessor The interrupt facility is provided in microprocessor to stop the microprocessor when desired stop the microprocessor when it starts malfunctioning keep a control on the working of the microprocessor change the sequence of the instructions being executed stop the microprocessor when desired stop the microprocessor when it starts malfunctioning keep a control on the working of the microprocessor change the sequence of the instructions being executed ANSWER DOWNLOAD EXAMIANS APP
Microprocessor The reason for the presence of ALE pin in 8085, but not in 6800 is that 8085 has multiplexed bus, whereas 6800 does not have 8085 uses I/O mapped I/O, whereas 6800 uses memory mapped I/O 8085 has 5 interrupts lines, whereas 6800 has only two None 8085 has multiplexed bus, whereas 6800 does not have 8085 uses I/O mapped I/O, whereas 6800 uses memory mapped I/O 8085 has 5 interrupts lines, whereas 6800 has only two None ANSWER DOWNLOAD EXAMIANS APP
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