Distributed supply current switch circuits for enabling individual power domains
    21.
    发明申请
    Distributed supply current switch circuits for enabling individual power domains 有权
    用于启用各个电源域的分布式电源电流开关电路

    公开(公告)号:US20060184808A1

    公开(公告)日:2006-08-17

    申请号:US11228912

    申请日:2005-09-16

    IPC分类号: G06F1/26

    摘要: An integrated circuit includes multiple power domains. Supply current switch circuits (SCSCs) are distributed across each power domain. When a signal is present on a control node within a SCSC, the SCSC couples a local supply bus of the power domain to a global supply bus. An enable signal path extends through the SCSCs so that an enable signal can be propagated down a chain of SCSCs from control node to control node, thereby turning the SCSCs on one by one. When the domain is to be powered up, a control circuit asserts an enable signal that propagates down a first chain of SCSCs. After a programmable amount of time, the control circuit asserts a second enable signal that propagates down a second chain. By spreading the turning on of SCSCs over time, large currents that would otherwise be associated with coupling the local and global buses together are avoided.

    摘要翻译: 集成电路包括多个电源域。 电源电流开关电路(SCSC)分布在每个电源域上。 当SCSC中的控制节点上存在信号时,SCSC将电源域的本地电源总线耦合到全局电源总线。 使能信号路径延伸穿过SCSC,使得使能信号可以从SCSC链从传播控制节点传播到控制节点,从而逐个转换SCSC。 当域要加电时,控制电路断言使第一链SCSC向下传播的使能信号。 在可编程的时间量之后,控制电路断言向下传播第二链的第二使能信号。 通过随着时间推移SCSC的接通,避免了将局部和全局总线连接在一起的大电流。

    Reducing cache power consumption for sequential accesses
    22.
    发明授权
    Reducing cache power consumption for sequential accesses 有权
    减少顺序访问的高速缓存功耗

    公开(公告)号:US08914580B2

    公开(公告)日:2014-12-16

    申请号:US12861091

    申请日:2010-08-23

    IPC分类号: G06F12/08

    摘要: In some embodiments, a cache may include a tag array and a data array, as well as circuitry that detects whether accesses to the cache are sequential (e.g., occupying the same cache line). For example, a cache may include a tag array and a data array that stores data, such as multiple bundles of instructions per cache line. During operation, it may be determined that successive cache requests are sequential and do not cross a cache line boundary. Responsively, various cache operations may be inhibited to conserve power. For example, access to the tag array and/or data array, or portions thereof, may be inhibited.

    摘要翻译: 在一些实施例中,高速缓存可以包括标签阵列和数据阵列,以及检测对高速缓存的访问是否是顺序的(例如,占用相同的高速缓存行)的电路。 例如,高速缓存可以包括标签阵列和存储数据的数据阵列,例如每个高速缓存线的多条指令束。 在操作期间,可以确定连续的缓存请求是顺序的,并且不跨越高速缓存行边界。 响应地,可以抑制各种高速缓存操作以节省功率。 例如,可以禁止对标签阵列和/或数据阵列或其部分的访问。

    Address generation unit with pseudo sum to accelerate load/store operations
    23.
    发明授权
    Address generation unit with pseudo sum to accelerate load/store operations 有权
    具有伪和的地址生成单元,用于加速加载/存储操作

    公开(公告)号:US08171258B2

    公开(公告)日:2012-05-01

    申请号:US12506311

    申请日:2009-07-21

    IPC分类号: G06F12/00

    摘要: In an embodiment, an address generation unit (AGU) is configured to generate a pseudo sum from an index portion of two or more operands. The pseudo sum may equal the index if the carry-in of the actual sum to the least significant bit of the index is a selected value (e.g. zero). The AGU may also include circuitry coupled to receive the operands and to generate the actual carry-in to the least significant bit of the index. The AGU may transmit the pseudo sum and the carry-in to a decode block for a memory array. The decode block may decode the pseudo sum into one or more one-hot vectors. The one-hot vectors may be input to muxes, and the one-hot vectors rotated by one position may be the other input. The actual carry-in may be the selection control of the mux.

    摘要翻译: 在一个实施例中,地址生成单元(AGU)被配置为从两个或更多个操作数的索引部分生成伪和。 如果实际和到索引的最低有效位的进位是一个选定的值(例如零),那么伪和可以等于索引。 AGU还可以包括耦合以接收操作数并且生成索引的最低有效位的实际载入的电路。 AGU可以将伪和和携带发送到用于存储器阵列的解码块。 解码块可以将伪和解码成一个或多个单向量向量。 单热矢量可以被输入到多路复用器,并且旋转一个位置的一个热向量可以是另一个输入。 实际的进位可能是多路复用器的选择控制。

    Reducing Cache Power Consumption For Sequential Accesses
    24.
    发明申请
    Reducing Cache Power Consumption For Sequential Accesses 有权
    降低缓存功耗,实现顺序访问

    公开(公告)号:US20120047329A1

    公开(公告)日:2012-02-23

    申请号:US12861091

    申请日:2010-08-23

    IPC分类号: G06F12/08 G06F12/00

    摘要: In some embodiments, a cache may include a tag array and a data array, as well as circuitry that detects whether accesses to the cache are sequential (e.g., occupying the same cache line). For example, a cache may include a tag array and a data array that stores data, such as multiple bundles of instructions per cache line. During operation, it may be determined that successive cache requests are sequential and do not cross a cache line boundary. Responsively, various cache operations may be inhibited to conserve power. For example, access to the tag array and/or data array, or portions thereof, may be inhibited.

    摘要翻译: 在一些实施例中,高速缓存可以包括标签阵列和数据阵列,以及检测对高速缓存的访问是否是顺序的(例如,占用相同的高速缓存行)的电路。 例如,高速缓存可以包括标签阵列和存储数据的数据阵列,例如每个高速缓存线的多条指令束。 在操作期间,可以确定连续的缓存请求是顺序的,并且不跨越高速缓存行边界。 响应地,可以抑制各种高速缓存操作以节省功率。 例如,可以禁止对标签阵列和/或数据阵列或其部分的访问。

    Systems and methods for monitoring physical paths within a computer network
    25.
    发明授权
    Systems and methods for monitoring physical paths within a computer network 有权
    用于监视计算机网络内的物理路径的系统和方法

    公开(公告)号:US08108551B1

    公开(公告)日:2012-01-31

    申请号:US12559645

    申请日:2009-09-15

    IPC分类号: G06F15/173

    CPC分类号: H04L43/0811 H04L41/065

    摘要: A computer-implemented method for monitoring physical paths within a computer network may include: 1) identifying a first logical path within a computer network, 2) identifying a physical path that corresponds to the first logical path, 3) probing the physical path to determine whether the first logical path is active, 4) identifying a second logical path within the computer network, 5) determining that the physical path also corresponds to the second logical path, and then 6) using the results of the probe of the physical path to determine whether the second logical path is active without probing the physical path a second time. Additional computer-implemented methods for monitoring physical paths within multi-host computer networks are also disclosed.

    摘要翻译: 用于监视计算机网络内的物理路径的计算机实现的方法可以包括:1)识别计算机网络内的第一逻辑路径,2)识别对应于第一逻辑路径的物理路径,3)探测物理路径以确定 第一逻辑路径是否是活动的,4)识别计算机网络内的第二逻辑路径,5)确定物理路径也对应于第二逻辑路径,然后6)使用物理路径的探测结果 确定第二个逻辑路径是否处于活动状态,而不是第二次探测物理路径。 还公开了用于监视多主机计算机网络内的物理路径的附加计算机实现的方法。

    DISTRIBUTED SUPPLY CURRENT SWITCH CIRCUITS FOR ENABLING INDIVIDUAL POWER DOMAINS
    26.
    发明申请
    DISTRIBUTED SUPPLY CURRENT SWITCH CIRCUITS FOR ENABLING INDIVIDUAL POWER DOMAINS 有权
    用于启用个性电源域的分布式电源开关电路

    公开(公告)号:US20100097101A1

    公开(公告)日:2010-04-22

    申请号:US12642651

    申请日:2009-12-18

    IPC分类号: H03K19/0175

    摘要: An integrated circuit includes multiple power domains. Supply current switch circuits (SCSCs) are distributed across each power domain. When a signal is present on a control node within a SCSC, the SCSC couples a local supply bus of the power domain to a global supply bus. An enable signal path extends through the SCSCs so that an enable signal can be propagated down a chain of SCSCs from control node to control node, thereby turning the SCSCs on one by one. When the domain is to be powered up, a control circuit asserts an enable signal that propagates down a first chain of SCSCs. After a programmable amount of time, the control circuit asserts a second enable signal that propagates down a second chain. By spreading the turning on of SCSCs over time, large currents that would otherwise be associated with coupling the local and global buses together are avoided.

    摘要翻译: 集成电路包括多个电源域。 电源电流开关电路(SCSC)分布在每个电源域上。 当SCSC中的控制节点上存在信号时,SCSC将电源域的本地电源总线耦合到全局电源总线。 使能信号路径延伸穿过SCSC,使得使能信号可以从SCSC链从传播控制节点传播到控制节点,从而逐个转换SCSC。 当域要加电时,控制电路断言使第一链SCSC向下传播的使能信号。 在可编程的时间量之后,控制电路断言向下传播第二链的第二使能信号。 通过随着时间推移SCSC的接通,避免了将局部和全局总线连接在一起的大电流。

    Distributed supply current switch circuits for enabling individual power domains
    27.
    发明授权
    Distributed supply current switch circuits for enabling individual power domains 有权
    用于启用各个电源域的分布式电源电流开关电路

    公开(公告)号:US07659746B2

    公开(公告)日:2010-02-09

    申请号:US11228912

    申请日:2005-09-16

    IPC分类号: H03K19/0175 H03K19/094

    摘要: An integrated circuit includes multiple power domains. Supply current switch circuits (SCSCs) are distributed across each power domain. When a signal is present on a control node within a SCSC, the SCSC couples a local supply bus of the power domain to a global supply bus. An enable signal path extends through the SCSCs so that an enable signal can be propagated down a chain of SCSCs from control node to control node, thereby turning the SCSCs on one by one. When the domain is to be powered up, a control circuit asserts an enable signal that propagates down a first chain of SCSCs. After a programmable amount of time, the control circuit asserts a second enable signal that propagates down a second chain. By spreading the turning on of SCSCs over time, large currents that would otherwise be associated with coupling the local and global buses together are avoided.

    摘要翻译: 集成电路包括多个电源域。 电源电流开关电路(SCSC)分布在每个电源域上。 当SCSC中的控制节点上存在信号时,SCSC将电源域的本地电源总线耦合到全局电源总线。 使能信号路径延伸穿过SCSC,使得使能信号可以从SCSC链从传播控制节点传播到控制节点,从而逐个转换SCSC。 当域要加电时,控制电路断言使第一链SCSC向下传播的使能信号。 在可编程的时间量之后,控制电路断言向下传播第二链的第二使能信号。 通过随着时间推移SCSC的接通,避免了将局部和全局总线连接在一起的大电流。

    Lookahead scheme for prioritized reads
    28.
    发明授权
    Lookahead scheme for prioritized reads 有权
    优先阅读的前瞻方案

    公开(公告)号:US09009369B2

    公开(公告)日:2015-04-14

    申请号:US13282873

    申请日:2011-10-27

    摘要: A circular queue implementing a scheme for prioritized reads is disclosed. In one embodiment, a circular queue (or buffer) includes a number of storage locations each configured to store a data value. A multiplexer tree is coupled between the storage locations and a read port. A priority circuit is configured to generate and provide selection signals to each multiplexer of the multiplexer tree, based on a priority scheme. Based on the states of the selection signals, one of the storage locations is coupled to the read port via the multiplexers of the multiplexer tree.

    摘要翻译: 公开了实现优先读取方案的循环队列。 在一个实施例中,循环队列(或缓冲器)包括多个存储位置,每个存储位置被配置为存储数据值。 复用器树耦合在存储位置和读端口之间。 优先级电路被配置为基于优先级方案来生成并提供对多路复用器树的每个多路复用器的选择信号。 基于选择信号的状态,其中一个存储位置经由复用器树的多路复用器耦合到读端口。

    Distributed supply current switch circuits for enabling individual power domains
    30.
    发明授权
    Distributed supply current switch circuits for enabling individual power domains 有权
    用于启用各个电源域的分布式电源电流开关电路

    公开(公告)号:US08063664B2

    公开(公告)日:2011-11-22

    申请号:US12642651

    申请日:2009-12-18

    IPC分类号: H03K19/0175 H03K19/094

    摘要: An integrated circuit includes multiple power domains. Supply current switch circuits (SCSCs) are distributed across each power domain. When a signal is present on a control node within a SCSC, the SCSC couples a local supply bus of the power domain to a global supply bus. An enable signal path extends through the SCSCs so that an enable signal can be propagated down a chain of SCSCs from control node to control node, thereby turning the SCSCs on one by one. When the domain is to be powered up, a control circuit asserts an enable signal that propagates down a first chain of SCSCs. After a programmable amount of time, the control circuit asserts a second enable signal that propagates down a second chain. By spreading the turning on of SCSCs over time, large currents that would otherwise be associated with coupling the local and global buses together are avoided.

    摘要翻译: 集成电路包括多个电源域。 电源电流开关电路(SCSC)分布在每个电源域上。 当SCSC中的控制节点上存在信号时,SCSC将电源域的本地电源总线耦合到全局电源总线。 使能信号路径延伸穿过SCSC,使得使能信号可以从SCSC链从传播控制节点传播到控制节点,从而逐个转换SCSC。 当域要加电时,控制电路断言使第一链SCSC向下传播的使能信号。 在可编程的时间量之后,控制电路断言向下传播第二链的第二使能信号。 通过随着时间推移SCSC的接通,避免了将局部和全局总线连接在一起的大电流。