METHOD AND APPARATUS FOR PROVIDING POWER STATE INFORMATION USING IN-BAND SIGNALING

A method and apparatus for providing power state information using in-band signaling are described. In one embodiment, an integrated circuit (IC) device comprises a controller operable to receive a command from a platform control bus, the command requesting data that is unrelated to information about a power state in which the IC resides; and control logic operable to obtain data for inclusion ina response to the command, wherein the controller is operable to send the response over a bus, the response containing at least a portion of the data responsive to the command and containing power state information for the IC. 描述了种用于使用带内信令来提供功率状态信息的方法和装置。在个实施例中，集成电路(IC)设备包括控制器，该控制器能操作用于从平台控制总线接收命令，命令请求与关于IC所驻留功率状态的信息不相关的数据；以及控制逻辑，该控制逻辑能操作用于获得用来包含在对命令的响应中的数据，其中控制器能操作用于通过总线发送响应，该响应包含响应于命令的数据的至少部分且包含IC的功率状态信息。