Microprocessor Which one of the following instruction may be used to clear the accumulator content irrespective of its initial value? MOV A, 00H ORA A SUB A CLR A MOV A, 00H ORA A SUB A CLR A ANSWER DOWNLOAD EXAMIANS APP
Microprocessor Length of the instruction POP D is 3 byte 2 byte 4 byte 1 byte 3 byte 2 byte 4 byte 1 byte ANSWER DOWNLOAD EXAMIANS APP
Microprocessor An I/O processor controls the flow of information between Main memory and I/O devices Cache and main memory Two I/O devices Cache memory and I/O devices Main memory and I/O devices Cache and main memory Two I/O devices Cache memory and I/O devices ANSWER DOWNLOAD EXAMIANS APP
Microprocessor The reason for the presence of ALE pin in 8085, but not in 6800 is that 8085 has 5 interrupts lines, whereas 6800 has only two 8085 uses I/O mapped I/O, whereas 6800 uses memory mapped I/O None 8085 has multiplexed bus, whereas 6800 does not have 8085 has 5 interrupts lines, whereas 6800 has only two 8085 uses I/O mapped I/O, whereas 6800 uses memory mapped I/O None 8085 has multiplexed bus, whereas 6800 does not have ANSWER DOWNLOAD EXAMIANS APP
Microprocessor Inintel 8085A microprocessor ALE signal is made high to To disable data bus Enable the data bus to be used as low order address bus To achieve all the functions listed above To latch data D0-D7 from data bus To disable data bus Enable the data bus to be used as low order address bus To achieve all the functions listed above To latch data D0-D7 from data bus ANSWER DOWNLOAD EXAMIANS APP
Microprocessor In 8085 microprocessor system with memory mapped I/O, which of the following is true? There can be maximum of 256 input devices and 256 output devices Devices are accessed using IN and OUT instructions Arithmetic and logic operations can be directly performed with the I/O data Devices have 8-bit address line There can be maximum of 256 input devices and 256 output devices Devices are accessed using IN and OUT instructions Arithmetic and logic operations can be directly performed with the I/O data Devices have 8-bit address line ANSWER DOWNLOAD EXAMIANS APP
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