公开(公告)号：US20140098728A1

公开(公告)日：2014-04-10

申请号：US14034161

申请日：2013-09-23

Applicant: Broadcom Corporation

Inventor： Kevin BROWN ,  Richard G. Thousand ,  John Creigh

IPC: H04L12/12

CPC classification number: H04L12/12 ,  H04L12/40052 ,  H04L12/40097 ,  Y02D50/20 ,  Y02D50/40 ,  Y02D50/42

Abstract: The present invention provides a way of placing a physical layer device into a standby mode. After a link is established between multiple devices, a determination is made whether the device has data to transmit or whether a standby request was received from a link partner. If a standby request was received or the device has no data to transmit, standby mode is entered. In standby mode, unneeded circuitry is powered down. A transmitter in a channel and a receive path in a separate channel remain powered. While operating in standby mode, the PHY layer continuously transmits a standby code on the one or more channels that are not powered down. Standby mode is discontinued when a transceiver has data to transmit or when energy is detected on the powered down channels. Standby mode is also discontinued when no standby code is received, indicating a disconnect between devices.

Abstract translation: 本发明提供了将物理层设备置于待机模式的方式。 在多个设备之间建立链路之后，确定设备是否具有要发送的数据，还是从链路伙伴接收到待机请求。 如果接收到待机请求或设备没有要发送的数据，则进入待机模式。 在待机模式下，不需要的电路掉电。 信道中的发射机和单独信道中的接收路径保持供电。 在待机模式下工作时，PHY层在一个或多个未断电的通道上连续发送待机代码。 当收发器具有要传输的数据或在掉电通道上检测到能量时，待机模式将停止。 当没有接收到待机代码时，待机模式也被停止，指示设备之间断开连接。

公开(公告)号：US20140023068A1

公开(公告)日：2014-01-23

申请号：US13716521

申请日：2012-12-17

Applicant: BROADCOM CORPORATION

Inventor： Yongbum KIM ,  Mehmet TAZEBAY ,  Kevin BROWN ,  Manfred WAGNER

IPC: H04L12/56

CPC classification number: H04L45/72 ,  H04L12/40006 ,  H04L12/40163 ,  H04L12/4625 ,  H04L2012/40215

Abstract: Systems and methods for implementing controller area network (CAN) communications between CAN nodes using Ethernet are provided. An Ethernet switch includes ports, each of which is configured to receive an Ethernet data packet (EDP) from a CAN node. Each EDP includes a CAN message, which includes an identification (ID) of a corresponding CAN node. A first port is configured to receive a first EDP and a second port is configured to receive a second EDP. The Ethernet switch also includes a controller module configured to detect a CAN conflict between the first EDP and the second EDP. The controller module is configured to select, in response to the detection of the CAN conflict, the first EDP or the second EDP based on the ID corresponding to the first EDP and the ID corresponding to the second EDP. The controller module is configured to route the selected EDP to a destination.

Abstract translation: 提供使用以太网的CAN节点之间实现控制器局域网（CAN）通信的系统和方法。 以太网交换机包括端口，每个端口被配置为从CAN节点接收以太网数据分组（EDP）。 每个EDP包括CAN消息，其包括相应CAN节点的标识（ID）。 第一端口被配置为接收第一EDP，并且第二端口被配置为接收第二EDP。 以太网交换机还包括被配置为检测第一EDP和第二EDP之间的CAN冲突的控制器模块。 控制器模块被配置为基于对应于第一EDP的ID和对应于第二EDP的ID来选择响应于CAN冲突的检测到第一EDP或第二EDP。 控制器模块被配置为将所选择的EDP路由到目的地。