Microprocessor In an intel 8085A, which is the first machine cycle of an instruction? An I/O read cycle A memory write cycle A memory read cycle An op-code fetch cycle An I/O read cycle A memory write cycle A memory read cycle An op-code fetch cycle ANSWER DOWNLOAD EXAMIANS APP
Microprocessor XCHG instruction exchanges the content of H-L with ______ register pair. D-E B-C Stack Pointer PSW D-E B-C Stack Pointer PSW ANSWER DOWNLOAD EXAMIANS APP
Microprocessor The stack pointer register in a microprocessor counts the number of programs being executing on the microprocessor holds the address of the top of the stack keeps the address of the next instruction to be fetched counts the number of instructions being executing on the microprocessor counts the number of programs being executing on the microprocessor holds the address of the top of the stack keeps the address of the next instruction to be fetched counts the number of instructions being executing on the microprocessor ANSWER DOWNLOAD EXAMIANS APP
Microprocessor In an 8085 microprocessor based system, the contents of SP are 1000H, PUSH B instruction will transfer the contents of registers B & C respectively for memory locations 1000 H and 1001 H 0FFE H and 0FFF H 1000 H and 0FFF H 0FFF H and 0FFE H 1000 H and 1001 H 0FFE H and 0FFF H 1000 H and 0FFF H 0FFF H and 0FFE H 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 Devices have 8-bit address line 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 are accessed using IN and OUT instructions Devices have 8-bit address line Arithmetic and logic operations can be directly performed with the I/O data ANSWER DOWNLOAD EXAMIANS APP
Microprocessor In 8086 the number of bytes which can be addressed directly is about one million 10000 1000 100000 one million 10000 1000 100000 ANSWER DOWNLOAD EXAMIANS APP
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