Microprocessor Which one of the following microprocessor has 16-bit data bus? 68000 8085 Z-80 6502 68000 8085 Z-80 6502 ANSWER DOWNLOAD EXAMIANS APP
Microprocessor Because we wish to allow each ASCII code to occupy one location in memory, most memories are __________ addressable. NIBBLE DOUBLEWORD (32 bits) BYTE WORD (16 bits) NIBBLE DOUBLEWORD (32 bits) BYTE WORD (16 bits) ANSWER DOWNLOAD EXAMIANS APP
Microprocessor The content of the A15-A8 (higher order address lines) while executing “IN 8-bit port address” instruction are irrelevant same as the content of A7-A0 all bits reset (i.e. 00H) all bits set (i.e. FFH) irrelevant same as the content of A7-A0 all bits reset (i.e. 00H) all bits set (i.e. FFH) 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 Doubles Increases by 2^(address bits)/addressability Remains unchanged Halves Doubles Increases by 2^(address bits)/addressability Remains unchanged ANSWER DOWNLOAD EXAMIANS APP
Microprocessor The timing difference between a slow memory and fast processor can be resolved if External buffer is used Neither A nor B Processor is capable of waiting Either A or B External buffer is used Neither A nor B Processor is capable of waiting Either A or B ANSWER DOWNLOAD EXAMIANS APP
Microprocessor The reason for the presence of ALE pin in 8085, but not in 6800 is that 8085 uses I/O mapped I/O, whereas 6800 uses memory mapped I/O 8085 has 5 interrupts lines, whereas 6800 has only two 8085 has multiplexed bus, whereas 6800 does not have None 8085 uses I/O mapped I/O, whereas 6800 uses memory mapped I/O 8085 has 5 interrupts lines, whereas 6800 has only two 8085 has multiplexed bus, whereas 6800 does not have None ANSWER DOWNLOAD EXAMIANS APP
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