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热词
    • 9. 发明授权
    • Message buffer for a receiver apparatus on a communications bus
    • 用于通信总线上的接收机设备的消息缓冲器
    • US07539888B2
    • 2009-05-26
    • US11395781
    • 2006-03-31
    • Carl C. HuKim R. Gauen
    • Carl C. HuKim R. Gauen
    • G06F1/32
    • H04L12/40039H04L12/66H04L2012/40215H04L2012/40273
    • A Controller Area Network (CAN) node consists of a high-powered microcontroller, a low standby power regulator, a CAN bus transceiver, and a minimal CAN message buffer for storing received messages. Low power standby operation allows for the controller to power off, while the transceiver and regulator are operated in standby. The transceiver/regulator will enter run mode after the first symbol of a received CAN message is validated off the bus. As the original CAN message is received, it is buffered in the message buffer and, after stored, a status register is set to indicate the full message has been received. Once the controller has stabilized out of a wake-up mode, it retrieves the stored message and acts accordingly. The CAN message buffer is coupled to the controller by an system packet interface (SPI) interface for transmission of a controller wake-up command and retrieval of a buffered message.
    • 控制器局域网(CAN)节点由高功率微控制器,低待机功率调节器,CAN总线收发器和用于存储接收到的消息的最小CAN消息缓冲器组成。 低功耗待机操作允许控制器关闭电源,而收发器和调节器在待机状态下运行。 在接收到CAN消息的第一个符号从总线上确认后,收发器/调节器将进入运行模式。 当接收到原始的CAN消息时,它被缓冲在消息缓冲器中,并且在存储之后设置状态寄存器以指示已经接收到完整的消息。 一旦控制器稳定在唤醒模式之后,它将检索存储的消息并相应地进行操作。 CAN消息缓冲器通过系统分组接口(SPI)接口耦合到控制器,用于发送控制器唤醒命令和检索缓冲消息。