Timing and control

What is the function of the RESET signal in the 8085 microprocessor?

• It indicates the start of a machine cycle.

• It resets the microprocessor and initializes it

• It enables the data bus.

• It controls the clock frequency.

Which control signal of the 8085 microprocessor is used to read data from memory or an I/O device?

• RD

• WR

• CLK

• ALE

What is the purpose of the HOLD signal in the 8085 microprocessor?

• It halts the microprocessor temporarily to allow external devices to gain control of the bus.

• It signals the end of an instruction execution.

• It indicates that an interrupt has occurred.

• It controls the clock signal.

Which timing signal of the 8085 microprocessor is generated by the oscillator circuit and provides the basic timing for all operations?

• RD

• WR

• CLK

• RESET

When does the Address Latch Enable (ALE) signal become active in the 8085 microprocessor?

• At the beginning of the machine cycle

• In the middle of the machine cycle

• At the end of the machine cycle

• During the instruction fetch cycle

Which control signal of the 8085 microprocessor is used to write data to memory or an I/O device?

• HOLD

• ALE

• RD

• WR

Which timing signal of the 8085 microprocessor is used to synchronize the operation of the memory and I/O devices with the microprocessor?

• CLK

• RESET

• HOLD

• READY

What is the function of the CLK OUT signal in the 8085 microprocessor?

• It is an input signal from external devices.

• It is used to control memory read operations.

• It indicates the end of a machine cycle.

• It provides the clock signal for external devices.