Microprocessor Total number of modes the 8253 can work 6 8 4 12 6 8 4 12 ANSWER DOWNLOAD EXAMIANS APP
Microprocessor S0 and S1 pins are used for None of these indicating the processor’s status acknowledging the interrupt serial communication None of these indicating the processor’s status acknowledging the interrupt serial communication ANSWER DOWNLOAD EXAMIANS APP
Microprocessor Which one of the following is not correct? An instruction is a set of bits that defines a computer operation Bootstrap is a technique or device for loading first instruction Bus is a group of wires An interrupt signal is required at the start of every program An instruction is a set of bits that defines a computer operation Bootstrap is a technique or device for loading first instruction Bus is a group of wires An interrupt signal is required at the start of every program ANSWER DOWNLOAD EXAMIANS APP
Microprocessor The content of the A15-A8 (higher order address lines) while executing “IN 8-bit port address” instruction are all bits reset (i.e. 00H) same as the content of A7-A0 irrelevant all bits set (i.e. FFH) all bits reset (i.e. 00H) same as the content of A7-A0 irrelevant all bits set (i.e. FFH) ANSWER DOWNLOAD EXAMIANS APP
Microprocessor The maximum number of seven segment displays that can be connected to 8279 is 18 12 16 8 18 12 16 8 ANSWER DOWNLOAD EXAMIANS APP
Microprocessor During the execution of the instruction, the ________tests the status and control flags and updates them based on the results of executing the instruction. Execution Unit (EU) Bus Interface Unit (BIU) None of these Both ‘c’ and ‘d’ Execution Unit (EU) Bus Interface Unit (BIU) None of these Both ‘c’ and ‘d’ ANSWER DOWNLOAD EXAMIANS APP
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