PHYSICAL LAYER LOOPBACK
    41.
    发明申请
    PHYSICAL LAYER LOOPBACK 有权
    物理层回滚

    公开(公告)号:US20130114420A1

    公开(公告)日:2013-05-09

    申请号:US13722942

    申请日:2012-12-20

    IPC分类号: H04L12/26

    摘要: In some embodiments, a chip comprises control circuitry to provide inband signals, inband output ports, and transmitters to transmit the inband signals to the inband output ports. The control circuitry selectively includes loopback initiating commands in the inband signals. Other embodiments are described and claimed.

    摘要翻译: 在一些实施例中,芯片包括控制电路,以提供带内信号,带内输出端口和发射器,以将带内信号传输到带内输出端口。 控制电路选择性地包括带内信号中的回送启动命令。 描述和要求保护其他实施例。

    PHYSICAL LAYER LOOPBACK
    42.
    发明申请
    PHYSICAL LAYER LOOPBACK 有权
    物理层回滚

    公开(公告)号:US20110176431A1

    公开(公告)日:2011-07-21

    申请号:US13073254

    申请日:2011-03-28

    IPC分类号: H04L12/26

    摘要: In some embodiments, a chip comprises control circuitry to provide inband signals, inband output ports, and transmitters to transmit the inband signals to the inband output ports. The control circuitry selectively includes loopback initiating commands in the inband signals. Other embodiments are described and claimed.

    摘要翻译: 在一些实施例中,芯片包括控制电路,以提供带内信号,带内输出端口和发射器,以将带内信号传输到带内输出端口。 控制电路选择性地包括带内信号中的回送启动命令。 描述和要求保护其他实施例。

    Physical layer loopback
    47.
    发明授权
    Physical layer loopback 有权
    物理层环回

    公开(公告)号:US07324458B2

    公开(公告)日:2008-01-29

    申请号:US10394363

    申请日:2003-03-21

    IPC分类号: H04J1/16 H04J3/14

    摘要: In some embodiments, a chip comprises control circuitry to provide inband signals, inband output ports, and transmitters to transmit the inband signals to the inband output ports. The control circuitry selectively includes loopback initiating commands in the inband signals. Other embodiments are described and claimed.

    摘要翻译: 在一些实施例中,芯片包括控制电路,以提供带内信号,带内输出端口和发射器,以将带内信号传输到带内输出端口。 控制电路选择性地包括带内信号中的回送启动命令。 描述和要求保护其他实施例。

    Method and apparatus for periodically retraining a serial links interface
    48.
    发明授权
    Method and apparatus for periodically retraining a serial links interface 有权
    定期重新列出串行链路接口的方法和装置

    公开(公告)号:US07209907B2

    公开(公告)日:2007-04-24

    申请号:US10877355

    申请日:2004-06-25

    IPC分类号: G06N5/00

    摘要: A method and apparatus for retraining skew compensation in an interface is presented. In one embodiment, a retraining interval is determined, and counters in the transmitting agent and receiving agent count up until the retraining interval is reached. A tracking unit used to select one of several interpolated clocks may then be powered up, and a special retraining phit may be sent across the interface. During the retraining process, the transfer of flits into and out of the flow-control mechanism may be inhibited. When the retraining process is finished, the tracking unit may be powered down.

    摘要翻译: 提出了一种用于在接口中重新训练偏斜补偿的方法和装置。 在一个实施例中,确定再培训间隔,并且发送代理和接收代理中的计数器向上计数直到达到再培训间隔。 然后,用于选择几个内插时钟之一的跟踪单元可以被加电,并且可以跨接口发送特殊的再培养phit。 在再培训过程中,可以抑制流入和流出控制机构的流动。 当再培训过程完成时,跟踪单元可能被关闭。

    Cache based physical layer self test
    49.
    发明授权
    Cache based physical layer self test 有权
    基于缓存的物理层自检

    公开(公告)号:US07203872B2

    公开(公告)日:2007-04-10

    申请号:US10882966

    申请日:2004-06-30

    IPC分类号: G01R31/28 G06F11/00

    CPC分类号: G06F11/27

    摘要: A software self test engine is executed from a cache of a processor. The software self test engine is executed using an execution engine of the processor to perform a physical layer self test. The physical layer self test is performed by transmitting a test vector from the execution engine under control of the self test engine to an input/output (“I/O”) unit of the processor along a datapath coupling the execution engine to the I/O unit. The test vector is transmitted along a loop back path including the I/O unit and the datapath to test a hardware device along the loop back path.

    摘要翻译: 从处理器的缓存执行软件自检引擎。 使用处理器的执行引擎执行软件自检引擎,以执行物理层自检。 通过在自检引擎的控制下将来自执行引擎的测试向量发送到处理器的输入/输出(“I / O”)单元,沿着将执行引擎耦合到I / O的数据通路执行物理层自检, O单位。 测试向量沿着包括I / O单元和数据通路的环回路径传输,以沿着循环路径测试硬件设备。

    Cumulative error detecting code
    50.
    发明授权
    Cumulative error detecting code 有权
    累积检错码

    公开(公告)号:US06446235B1

    公开(公告)日:2002-09-03

    申请号:US09386474

    申请日:1999-08-31

    IPC分类号: G06F1110

    摘要: An error detection technique uses a cumulative error detecting code (such as a cumulative CRC checksum or the like). At the source node (transmitter side) an error detecting code of a previous cell is stored. The next cell to be transmitted is received and the error detecting code of the previous cell is appended to the next cell. A next error detecting code is calculated as a function of at least a portion of the next cell to be transmitted and the previous error detecting code appended thereto. The previous error detecting code appended to the next cell is replaced with the next error detecting code, and the next cell including the next error detecting code appended thereto is transmitted. In this manner, the cumulative error detecting code is calculated over the current cell and a previous error detecting code. Thus, the cumulative error detecting code can be used to detect bit errors in each individual cell as well as to detect one or more missing or dropped cells.

    摘要翻译: 错误检测技术使用累积检错码(如累积CRC校验和等)。 在源节点(发射机侧),存储先前小区的错误检测码。 接收到要发送的下一个小区,并将上一个小区的错误检测码追加到下一个小区。 根据要发送的下一个小区的至少一部分和附加的先前的错误检测码,计算下一个错误检测码。 附加到下一个单元的先前错误检测码被下一个错误检测码替换,并且发送包括附加在其上的下一个检错码的下一个单元。 以这种方式,在当前小区和先前的错误检测码上计算累积检错码。 因此,可以使用累积检错码来检测每个单独的单元中的位错误,以及检测一个或多个丢失或丢弃的单元。