Microprocessor In an intel 8085A, which is the first machine cycle of an instruction? A memory read cycle A memory write cycle An I/O read cycle An op-code fetch cycle A memory read cycle A memory write cycle An I/O read cycle An op-code fetch cycle ANSWER DOWNLOAD EXAMIANS APP
Microprocessor The operations executed by two or more control units are referred as Multi-operations Bi control-operations Macro-operations Micro-operations Multi-operations Bi control-operations Macro-operations Micro-operations ANSWER DOWNLOAD EXAMIANS APP
Microprocessor If the number of address bits in a memory is reduced by 2 and the addressability is doubled, the size of the memory (i.e., the number of bits stored in the memory) Halves Increases by 2^(address bits)/addressability Remains unchanged Doubles Halves Increases by 2^(address bits)/addressability Remains unchanged Doubles ANSWER DOWNLOAD EXAMIANS APP
Microprocessor Inintel 8085A microprocessor ALE signal is made high to To disable data bus To latch data D0-D7 from data bus Enable the data bus to be used as low order address bus To achieve all the functions listed above To disable data bus To latch data D0-D7 from data bus Enable the data bus to be used as low order address bus To achieve all the functions listed above ANSWER DOWNLOAD EXAMIANS APP
Microprocessor Which of the following instruction will never affect the zero flag? ORA R DCX Rp DCR R XRA R ORA R DCX Rp DCR R XRA R ANSWER DOWNLOAD EXAMIANS APP
Microprocessor Let the content of register C be 00000000 before the instruction DCR C is executed. The content of register C after the after the execution of this instruction will be 00000000 11111111 00000001 None 00000000 11111111 00000001 None ANSWER DOWNLOAD EXAMIANS APP
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