So in regards to pull-up resistors I understand how it works that there's a power rail that a resistor connects to to keep it at a known high state and when a circuit wants to get a low state it shorts it to ground to create a binary pulse
My question is, how does the circuit/ic know when to pulse a line to ground? In other words how does a circuit know when to pulse a line down to 0v (low) to create data. Is it being triggered by another chip?
My question is, how does the circuit/ic know when to pulse a line to ground? In other words how does a circuit know when to pulse a line down to 0v (low) to create data. Is it being triggered by another chip?
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