Apparatus and method for improving power savings by accelerating device suspend and resume operations

An apparatus comprising:

• a main integrated circuit, the main integrated circuit having a context area, a context snooper, and a context cache, the context area configured to store context change information, the context snooper configured to monitor the context change information, wherein the context snooper judges whether the context change information is transferred to the context cache based on filtering and/or specifying the type of context information that is saved to the context cache, and wherein the context snooper judges whether the context change information is transferred from the context cache to a memory based on a detection of a triggering event, the triggering event being a suspend signal, a power down signal, or no jobs or tasks on the main integrated circuit, and wherein the context snooper transfers at least a portion of the context change information from the context cache to the memory only when the triggering event is detected, and the context cache configured to store the at least the portion of the context change information being monitored by the context snooper;
• and
• the memory configured to receive the at least the portion of the context change information from the context cache upon a suspend process signal to the main integrated circuit, to retain contents during the main integrated circuit suspend, and restore the at least the portion of the context change information to the context cache and/or the context area upon a resume process signal to the main integrated circuit.