Microprocessor Assertion(A): The frequency of 8085 system is ½ of the crystal frequency. Reason(R): Microprocessor (8085) requires a two phase clock. Both A & R are true but R is not the correct explanation of A A is false but R is true A is true but R is false Both A & R are true and R is the correct explanation of A Both A & R are true but R is not the correct explanation of A A is false but R is true A is true but R is false Both A & R are true and R is the correct explanation of A ANSWER DOWNLOAD EXAMIANS APP
Microprocessor The first machine cycle of an instruction is always A memory write cycle A memory read cycle A fetch cycle An I/O read cycle A memory write cycle A memory read cycle A fetch cycle An I/O read cycle ANSWER DOWNLOAD EXAMIANS APP
Microprocessor After RESET 8255 will be in unchanged condition mode 0; all ports are output mode 2 mode 0; all ports are input unchanged condition mode 0; all ports are output mode 2 mode 0; all ports are input 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 0FFF H 0FFE H and 0FFF H 1000 H and 1001 H 0FFF H and 0FFE H 1000 H and 0FFF H 0FFE H and 0FFF H 1000 H and 1001 H 0FFF H and 0FFE H ANSWER DOWNLOAD EXAMIANS APP
Microprocessor The operations executed by two or more control units are referred as Multi-operations Micro-operations Bi control-operations Macro-operations Multi-operations Micro-operations Bi control-operations Macro-operations ANSWER DOWNLOAD EXAMIANS APP
Microprocessor How can we make any bit of a register “1”? OR that bit with “1” and remaining bits with “0”. AND that bit with “0” and remaining bits with “1”. OR that bit with “0” and remaining bits with “1”. AND that bit with “1” and remaining bits with “0”. OR that bit with “1” and remaining bits with “0”. AND that bit with “0” and remaining bits with “1”. OR that bit with “0” and remaining bits with “1”. AND that bit with “1” and remaining bits with “0”. ANSWER DOWNLOAD EXAMIANS APP
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