Microprocessor Using one 8259 IC is equivalent to providing …………. INTR pins on 8085 16 8 12 18 16 8 12 18 ANSWER DOWNLOAD EXAMIANS APP
Microprocessor ‘Burst refresh’ in DRAM is also called None of these Distributed refresh Hidden refresh Concentrated refresh None of these Distributed refresh Hidden refresh Concentrated refresh ANSWER DOWNLOAD EXAMIANS APP
Microprocessor A number of 1-bit registers used in microprocessors to indicate certain conditions are usually referred to as shift registers counters flags latches shift registers counters flags latches ANSWER DOWNLOAD EXAMIANS APP
Microprocessor How many T-states are required for execution of OUT 80H instruction? 7 13 16 10 7 13 16 10 ANSWER DOWNLOAD EXAMIANS APP
Microprocessor _____________is used to read the status of the hardware interrupts (RST 7.5, RST 6.5, RST 5.5) by loading into the A register a byte which defines the condition of the mask bits for the interrupts. EI DI RIM SIM EI DI RIM SIM ANSWER DOWNLOAD EXAMIANS APP
Microprocessor HLDA signal in 8085 performs the following operation: Indicates that another master is requesting the use of the address and data buses. Indicates that the CPU has not received the HOLD request. Hold the data in the accumulator until the microprocessor is turned OFF. Indicates that the CPU has received the HOLD request and that it will relinquish the bus in the next clock cycle. Indicates that another master is requesting the use of the address and data buses. Indicates that the CPU has not received the HOLD request. Hold the data in the accumulator until the microprocessor is turned OFF. Indicates that the CPU has received the HOLD request and that it will relinquish the bus in the next clock cycle. ANSWER DOWNLOAD EXAMIANS APP
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