Patent ID: 11899523
Assignee: APPLE INC.
Field: Computer technology (Electrical engineering)
Classification: CPC G  Y | IPC G

Claim 0:
1. An integrated circuit assembly, comprising:
a plurality of integrated circuit dies coupled together, wherein the plurality of integrated circuit dies include a first and a second integrated circuit die that include respective processor circuitry configured to retrieve program instructions from random access memory that is distinct from the respective processor circuitry and execute the program instructions to implement software routines;
wherein the first integrated circuit die is configured to synchronize a power state change of the plurality of integrated circuit dies from a first power state to a second power state, and wherein to synchronize the power state change, the first integrated circuit die is configured to:
issue a transition request to the second integrated circuit die to transition from the first power state to the second power state;

wherein the second integrated circuit die is configured to:
receive the transition request from the first integrated circuit die;
transition the second integrated circuit die to the second power state; and
issue an acknowledgement to the first integrated circuit die that the second integrated circuit die has transitioned to the second power state; and

wherein the first integrated circuit die is configured to:
transition the first integrated circuit die from the first power state to the second power state.