Patent ID: 11953969
Assignee: TEXAS INSTRUMENTS INCORPORATED
Field: Computer technology (Electrical engineering)
Classification: CPC G  Y | IPC G

Claim 18:
19. A system comprising:
an input;
an output; and
a first controller coupled to the input and the output, the first controller including a non-volatile memory, wherein the first controller is configured to:
responsive to receiving a first trigger signal, transfer data in a volatile memory to the non-volatile memory; and
responsive to receiving a second trigger signal, transfer the data in the non-volatile memory to the volatile memory; and

a second controller coupled to the first controller, the input, and the output, wherein the second controller is configured to:
in response to a signal on the input corresponding to a first power state of the system being below a threshold and greater than zero:
transmit the first trigger signal to the first controller; and
transmit an interrupt on the output; and

in response to the signal on the input indicating a second power state of the system being greater than a power amount sufficient to complete a round trip of a restore operation and a save operation, transmit the second trigger signal to the first controller.