Circuit systems and methods for reducing power supply voltage droop

A method of operating a circuit system to reduce voltage droop in a supply voltage, the method comprising:

• performing a first set of operations using a first group of circuits in a first integrated circuit die;
• performing a second set of operations using a second group of circuits in a second integrated circuit die with a first delay after the first group of circuits starts performing the first set of operations;
• and
• partitioning logic circuits into the first and the second groups of circuits based on predicted switching activity of the logic circuits.

A circuit system comprising:

• a first integrated circuit die comprising a first state machine circuit;
• a second integrated circuit die comprising a second state machine circuit and a first decoupling capacitor;
• and
• a third integrated circuit die comprising a third state machine circuit and a second decoupling capacitor, wherein the first state machine circuit instructs the second and the third state machine circuits to cause the first decoupling capacitor to be coupled to the second decoupling capacitor to reduce voltage droop in a supply voltage in the second integrated circuit die during a high current event in the second integrated circuit die.