Method for handling configuration data for an interconnection protocol within hibernate operation, controller, and electronic device

Abstract

A method for handling configuration data for an interconnection protocol within hibernation operation, a controller and an electronic device are provided. The method includes the following steps. In an electronic device, a hibernation entering indication signal indicating entering a hibernation state of the interconnection protocol is received. The electronic device has a memory and an index table, wherein the index table includes attribute identifiers corresponding to management information base (MIB) attributes, which belong to sub-layers of a link layer of the interconnection protocol and are required to be retained during hibernation. In response to the hibernation entering indication signal, MIB attribute storing is performed by a hardware protocol engine for implementing the link layer to read, for each one of the sub-layers, attribute data from the sub-layers according to the attribute identifiers from the index table sequentially and to write the attribute data sequentially to the memory. After the entering the hibernation state, the hardware protocol engine is in a power saving state or off while the memory remains on.