公开(公告)号：US20060018265A1

公开(公告)日：2006-01-26

申请号：US10897609

申请日：2004-07-23

申请人： Tim Frodsham ,  Naveen Cherukuri ,  Sanjay Dabral ,  David Dunning ,  Theodore Schoenborn ,  Lakshminarayan Krishnamurty

发明人： Tim Frodsham ,  Naveen Cherukuri ,  Sanjay Dabral ,  David Dunning ,  Theodore Schoenborn ,  Lakshminarayan Krishnamurty

IPC分类号： H04L12/26

CPC分类号： H04L43/50 ,  H04L41/082 ,  H04L69/40

摘要： A loopback test to test a communication link for a layered interface where in a master agent programs the electrical parameters for the slave agent, such as, the offset, timing, and current compensation with a loopback control register. The slave agent's transmitter and receiver are independently controlled and the master agent may use a slave-echoed data test pattern to detect errors and subsequently sets the appropriate status bits in a loop back status register

摘要翻译： 用于测试分层接口的通信链路的环回测试，其中主代理程序使用环回控制寄存器编程用于从属代理的电参数，例如偏移，定时和电流补偿。 从属代理的发送器和接收器是独立控制的，主代理可以使用从属回波数据测试模式来检测错误，并随后在循环状态寄存器中设置适当的状态位

公开(公告)号：US20060020861A1

公开(公告)日：2006-01-26

申请号：US10897596

申请日：2004-07-23

申请人： Tim Frodsham ,  Naveen Cherukuri ,  Sanjay Dabral ,  David Dunning ,  Theodore Schoenborn ,  Lakshminarayan Krishnamurty

发明人： Tim Frodsham ,  Naveen Cherukuri ,  Sanjay Dabral ,  David Dunning ,  Theodore Schoenborn ,  Lakshminarayan Krishnamurty

IPC分类号： G01R31/28

CPC分类号： G01R31/31716

摘要： A loopback test to test a communication link for a layered interface where in a master agent programs the electrical parameters for the slave agent, such as, the offset, timing, and current compensation with a loopback control register. The slave and master agent to support an entry into the loopback test based on detection of a header within a packet. The slave and master agent to support exit out of the loopback test based on whether the loop count is finite.

摘要翻译： 用于测试分层接口的通信链路的环回测试，其中主代理程序使用环回控制寄存器编程用于从属代理的电参数，例如偏移，定时和电流补偿。 从属和主代理支持根据检测到报文头中的报文进入环回测试。 根据循环计数是否有限，从站和主代理程序支持退出环回测试。

公开(公告)号：US20060005092A1

公开(公告)日：2006-01-05

申请号：US10882966

申请日：2004-06-30

申请人： Tim Frodsham ,  Lakshminarayan Krishnamurty ,  Naveen Cherukuri ,  Sanjay Dabral ,  David Dunning ,  Theodore Schoenborn

发明人： Tim Frodsham ,  Lakshminarayan Krishnamurty ,  Naveen Cherukuri ,  Sanjay Dabral ,  David Dunning ,  Theodore Schoenborn

IPC分类号： G01R31/28

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。

公开(公告)号：US20050238055A1

公开(公告)日：2005-10-27

申请号：US10833964

申请日：2004-04-27

申请人： Tim Frodsham ,  Naveen Cherukuri ,  Sanjay Darbal ,  David Dunning ,  Theodore Schoenborn ,  Lakshminarayan Krishnamurty ,  Aaron Spink

发明人： Tim Frodsham ,  Naveen Cherukuri ,  Sanjay Darbal ,  David Dunning ,  Theodore Schoenborn ,  Lakshminarayan Krishnamurty ,  Aaron Spink

IPC分类号： H04B1/16 ,  H04B1/44 ,  H04J3/24 ,  H04L12/28 ,  H04L12/56

CPC分类号： H04W52/0287 ,  Y02D70/00

摘要： A predetermined network packet is utilized for power reduction in either or both of a transmitter and receiver when information is not needed. Upon detection of the predetermined network packet type, various portions of the transmitter and/or receiver may be clock gated or powered down.

摘要翻译： 当不需要信息时，预定的网络分组被用于发射机和接收机中的任一个或两者中的功率降低。 在检测到预定网络分组类型时，发射机和/或接收机的各个部分可以是时钟门控或掉电。

公开(公告)号：US20050262336A1

公开(公告)日：2005-11-24

申请号：US10850783

申请日：2004-05-21

申请人： Naveen Cherukuri ,  Sanjay Dabral ,  David Dunning ,  Tim Frodsham ,  Theodore Schoenborn

发明人： Naveen Cherukuri ,  Sanjay Dabral ,  David Dunning ,  Tim Frodsham ,  Theodore Schoenborn

IPC分类号： G06F15/177 ,  H04L29/08

CPC分类号： H04L69/32

摘要： A method for effecting an in-band reset of the physical layers of two agents interconnected through a link-based interconnection scheme. In accordance with one embodiment of the invention, a first of the two agents ceases its forwarded clock to initiate the in-band reset. Upon realization of the cessation, a second agent ceases its forwarded clock and proceeds to a reset state. The first agent then proceeds to a reset state. Subsequently, after waiting a specified period of time, both agents proceed with a re-initialization of the physical layer. In accordance with one embodiment of the invention, the re-initialization of the physical layer is effected without impacting other layers of the interconnection hierarchy.

摘要翻译： 一种用于实现通过基于链路的互连方案互联的两个代理的物理层的带内复位的方法。 根据本发明的一个实施例，两个代理中的第一个停止其转发的时钟以启动带内复位。 在停止实现时，第二代理程序停止其转发的时钟并进入复位状态。 然后第一个代理进入复位状态。 随后，等待指定的时间段后，两个代理进行物理层的重新初始化。 根据本发明的一个实施例，实现物理层的重新初始化而不影响互连层次结构的其他层。

公开(公告)号：US20080091963A1

公开(公告)日：2008-04-17

申请号：US11950292

申请日：2007-12-04

申请人： Naveen Cherukuri ,  Jeffrey Wilcox ,  Sanjay Dabral ,  Phanindra Mannava ,  Aaron Spink ,  David Dunning ,  Tim Frodsham ,  Theodore Schoenborn

发明人： Naveen Cherukuri ,  Jeffrey Wilcox ,  Sanjay Dabral ,  Phanindra Mannava ,  Aaron Spink ,  David Dunning ,  Tim Frodsham ,  Theodore Schoenborn

IPC分类号： G06F1/32

CPC分类号： G06F1/3209 ,  G06F1/3253 ,  H04L12/12 ,  Y02D10/151 ,  Y02D50/20 ,  Y02D50/40

摘要： Disclosed are embodiments of a method, apparatus and system for a low power state for a point-to-point link. During the low power state, the signal on both conductors of a differential transmit pair are driven to electrical idle. Analog activity detectors are enabled during the low power state and are disabled during normal power state. Exit from the low power state does not require a physical layer re-initialization sequence. Other embodiments are also described and claimed.

摘要翻译： 公开了用于点对点链路的低功率状态的方法，装置和系统的实施例。 在低功率状态期间，差分发送对的两个导体上的信号被驱动到电气空闲。 模拟活动检测器在低功率状态期间被使能，并且在正常功率状态期间被禁用。 退出低功耗状态不需要物理层重新初始化的顺序。 还描述和要求保护其他实施例。

公开(公告)号：US20080077814A1

公开(公告)日：2008-03-27

申请号：US11949770

申请日：2007-12-04

申请人： Naveen Cherukuri ,  Jeffrey Wilcox ,  Sanjay Dabral ,  Phanindra Mannava ,  Aaron Spink ,  David Dunning ,  Tim Frodsham ,  Theodore Schoenborn

发明人： Naveen Cherukuri ,  Jeffrey Wilcox ,  Sanjay Dabral ,  Phanindra Mannava ,  Aaron Spink ,  David Dunning ,  Tim Frodsham ,  Theodore Schoenborn

IPC分类号： G06F1/32

CPC分类号： G06F1/3209 ,  G06F1/3253 ,  H04L12/12 ,  Y02D10/151 ,  Y02D50/20 ,  Y02D50/40

摘要： Disclosed are embodiments of a method, apparatus and system for a low power state for a point-to-point link. During the low power state, the signal on both conductors of a differential transmit pair are driven to electrical idle. Analog activity detectors are enabled during the low power state and are disabled during normal power state. Exit from the low power state does not require a physical layer re-initialization sequence. Other embodiments are also described and claimed.

公开(公告)号：US20060041696A1

公开(公告)日：2006-02-23

申请号：US10850810

申请日：2004-05-21

申请人： Naveen Cherukuri ,  Sanjay Dabral ,  David Dunning ,  Tim Frodsham ,  Theodore Schoenborn

发明人： Naveen Cherukuri ,  Sanjay Dabral ,  David Dunning ,  Tim Frodsham ,  Theodore Schoenborn

IPC分类号： G06F13/00

CPC分类号： G06F13/4278

摘要： Embodiments of the invention provide a state machine for initializing the physical layer of a point-to-point link-based interconnection. Embodiments of the invention use explicit handshakes between the interconnected agent to advance states and provide a variety of optional features for flexibility and efficiency.

摘要翻译： 本发明的实施例提供了一种用于初始化基于点对点链路的互连的物理层的状态机。 本发明的实施例使用互连的代理之间的显式握手来促进状态并且提供用于灵活性和效率的各种可选特征。

公开(公告)号：US20050262368A1

公开(公告)日：2005-11-24

申请号：US10850733

申请日：2004-05-21

申请人： Naveen Cherukuri ,  Jeffrey Wilcox ,  Sanjay Dabral ,  Phanindra Mannava ,  Aaron Spink ,  David Dunning ,  Tim Frodsham ,  Theodore Schoenborn

发明人： Naveen Cherukuri ,  Jeffrey Wilcox ,  Sanjay Dabral ,  Phanindra Mannava ,  Aaron Spink ,  David Dunning ,  Tim Frodsham ,  Theodore Schoenborn

IPC分类号： G06F1/26 ,  G06F1/32 ,  H04L12/12

CPC分类号： G06F1/3209 ,  G06F1/3253 ,  H04L12/12 ,  Y02D10/151 ,  Y02D50/20 ,  Y02D50/40

摘要： Disclosed are embodiments of a method, apparatus and system for a low power state for a point-to-point link. During the low power state, the signal on both conductors of a differential transmit pair are driven to electrical idle. Analog activity detectors are enabled during the low power state and are disabled during normal power state. Exit from the low power state does not require a physical layer re-initialization sequence. Other embodiments are also described and claimed.

摘要翻译： 公开了用于点对点链路的低功率状态的方法，装置和系统的实施例。 在低功率状态期间，差分发送对的两个导体上的信号被驱动到电气空闲。 模拟活动检测器在低功率状态期间被使能，并且在正常功率状态期间被禁用。 退出低功耗状态不需要物理层重新初始化的顺序。 还描述和要求保护其他实施例。

公开(公告)号：US20050262284A1

公开(公告)日：2005-11-24

申请号：US10851925

申请日：2004-05-21

申请人： Naveen Cherukuri ,  Sanjay Dabral ,  David Dunning ,  Tim Frodsham ,  Theodore Schoenborn ,  Rahul Shah ,  Maurice Steinman

发明人： Naveen Cherukuri ,  Sanjay Dabral ,  David Dunning ,  Tim Frodsham ,  Theodore Schoenborn ,  Rahul Shah ,  Maurice Steinman

IPC分类号： G06F13/36 ,  G06F13/40 ,  G06F13/42 ,  G06F13/00

CPC分类号： G06F13/4265

摘要： A technique is described by which two link agents with ports coupled together using a point-to-point interconnect in a system exchange their link width support capabilities and negotiate a link width that is mutually agreeable. The interconnect between each pair of agents comprises a pair of uni-directional links having multiple electrical wires, or lanes, where one link is used by a first agent to transmit data to a second agent and another link is used by the second agent to transmit data to the first agent.

摘要翻译： 描述了一种技术，其中具有使用系统中的点对点互连耦合在一起的端口的两个链路代理交换其链路宽度支持能力并协商相互同意的链路宽度。 每对代理之间的互连包括具有多个电线或通道的一对单向链路，其中一个链路被第一代理用于向第二代理传输数据，另一链路由第二代理使用， 数据到第一代理。