Recent questions tagged microprocessors

Which of the following processor registers are used for fetch and execute operations ?Program CounterInstruction RegisterAddress RegisterOptions :a and bb and ca and cNon...

I want to confirm the exact difference between a cpu and microprocessor and also between microprocessor and microcontroller.Anyone pls explain!

In a microprocessor, WAIT states are used to make the processor wait during a DMA operation make the processor wait during a power interrupt processingmake the processor ...

Microprocessors are used in which generation of computers?I – st GenerationII – nd GenerationIII – rd GenerationIV – th Generation

In $8085$ microprocessor, the digit $5$ indicates that the microprocessor needs$-5$ volts, $+5$ volts supply$+5$ volts supply only$-5$ volts supply only$5$ MHz clock

In $8085$, which of the following performs: load register pair immediate operation?LDAX rpLKLD addrLXI rp, dataINX rp

The contents of Register $(BL)$ and Register $(AL)$ of $8085$ microprocessor are $49H$ and $3AH$ respectively. The contents of $AL$, the status of carry flag $(CF)$ and s...

Which part in 8086 microprocessor is responsible for fetching instructions into the queue?BIUEUStackRegisters

Suppose initially the accumulator content is 95 H and carry flag is 0. What will be the contents of accumulator and carry flag after the execution of the instruction RAR?...

How many times will the following loop be executed? XRA A MVI C, 05H LOOP: DCR C JNZ LOOP a. Once b. Five times c. Inf...

What are the status of the ZERO flag and the contents of the accumulator after the execution of the following 8085 assembly code? Assume that contents of all other regist...

Which of the following flags is not affected by a conditional branch statement in an 8085 microprocessor? a. Auxiliary Carry flag b. Sign flag c. Carry flag d. Zero flag

In 8085 microprocessor, what is the output of following program?LDA 8000H MVI B, 30H ADD B STA 8001 HRead a number from input port and store it in memoryRead a number fro...

A micro-instruction format has micro-ops field which is divided into three subfields $F1$, $F2$, $F3$ each having seven distinct micro-operations, conditions field $CD$ f...

Which of the following is correct statement?In memory – mapped I/O, the CPU can manipulate I/O data residing in interface registers that are not used to manipulate memory...

In the architecture of $8085$ microprocessor match the following :$\begin{array}{clcl} \text{(a)} & \text{Processing unit} & \text{(i)} & \text{Interrupt} \\ \text{(b)}...

In $8085$ microprocessor which of the following flag(s) is (are) affected by an arithmetic operation?AC flag onlyCY flag OnlyZ flag OnlyAC, CY, Z flags

Principle of "locality" is used in context of Addressing lowest Memory address by microprocessorAddressing Highest Memory address by microprocessorAccessing Cache memory ...