公开(公告)号：US09100917B1

公开(公告)日：2015-08-04

申请号：US14159743

申请日：2014-01-21

Applicant: Marvell International LTD.

Inventor： Chuong Vu ,  Timothy Donovan ,  Kapil Chhabra ,  Sandesh Goel

IPC: H04M1/00 ,  H04W52/02

CPC classification number: H04W52/0229 ,  H04W4/20 ,  Y02D70/00 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/146 ,  Y02D70/168 ,  Y02D70/23

Abstract: A system-on-chip including a host interface module configured to interface the system-on-chip to a host processor of a wireless device and to communicate with the host processor of the wireless device via a bus. The bus uses an application programming interface of the system-on-chip. The host processor uses the application programming interface to configure a power save mode of the system-on-chip. A power management module operated the system-on-chip in the power save mode without performing a handshake with the host processor via the bus in response to the host processor stopping communication with the system-on-chip. The handshake includes (i) sending a request to enter the power save mode to the host processor via the bus and (ii) receiving an acknowledgement of the request from the host processor via the bus.

Abstract translation: 一种片上系统，包括主机接口模块，该主机接口模块被配置为将片上系统接口到无线设备的主处理器，并经由总线与无线设备的主机处理器进行通信。 总线使用片上系统的应用编程接口。 主处理器使用应用程序编程接口来配置片上系统的省电模式。 电源管理模块以省电模式操作片上系统，而不用通过总线响应于主机处理器停止与片上系统的通信而与主处理器进行握手。 握手包括（i）经由总线向主机处理器发送进入省电模式的请求，以及（ii）经由总线从主处理器接收对该请求的确认。