In digital systems, a strobe signal (also called an enable signal in many contexts) is used to control when a device, such as a register or a buffer, is allowed to drive its output.
When the strobe signal is active, the device drives its output onto the bus or output lines.
When the strobe is inactive, the output is placed in a high-impedance (tri-state) condition, effectively disconnecting it from the circuit.
This tri-state functionality is crucial in bus-oriented systems, where multiple devices share the same communication lines.
Other options:
(a) To reset memory register – Done by a reset signal, not a strobe.
(b) To check the functioning of a logic gate – Not related to the strobe function.
(c) To avoid race problem – Race conditions are handled by timing and synchronization, not strobes.
Correct: d. To tri-state the output of the register
