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    • 63. 发明授权
    • Low power input gating
    • 低功率输入门控
    • US09542986B2
    • 2017-01-10
    • US14849902
    • 2015-09-10
    • ARM Limited
    • Andy Wangkun ChenGus YeungYew Keong Chong
    • G11C8/18G11C8/06
    • G11C8/18G11C5/141G11C8/06
    • Various implementations described herein are directed to an integrated circuit for implementing low power input gating. In one implementation, the integrated circuit may include a chip enable device configured to receive and use a clock input signal to toggle a control input of memory based on a chip enable signal. The integrated circuit may include a latch device configured to latch the control input of the memory. The integrated circuit may include a latch enable device coupled between the chip enable device and the latch device. The latch enable device may be configured to receive the clock input signal from the chip enable device and use the clock input signal to gate the latch device based on a latch enable signal so as to selectively cutoff toggling of the clock input signal to the control input of the memory.
    • 本文所描述的各种实现涉及用于实现低功率输入门控的集成电路。 在一个实现中,集成电路可以包括芯片使能装置,其被配置为接收和使用时钟输入信号,以基于芯片使能信号切换存储器的控制输入。 集成电路可以包括被配置为锁存存储器的控制输入的锁存装置。 集成电路可以包括耦合在芯片使能装置和锁存装置之间的锁存使能装置。 锁存使能装置可以被配置为从芯片使能装置接收时钟输入信号,并且使用时钟输入信号基于锁存使能信号来对锁存器件进行门控,以便有选择地将时钟输入信号切换到控制输入 的记忆。
    • 68. 发明授权
    • ECC bypass using low latency CE correction with retry select signal
    • ECC旁路使用低延迟CE校正与重试选择信号
    • US09436548B2
    • 2016-09-06
    • US14098561
    • 2013-12-06
    • GLOBALFOUNDRIES Inc.
    • Benjiman L. GoodmanLuis A. Lastras-MontanoEric E. RetterKenneth L. Wright
    • G11C29/00G06F11/10G11C29/44G11C29/04G11C29/42G11C8/06
    • G06F11/1076G06F11/10G06F11/1012G06F11/1048G06F11/1052G11C8/06G11C29/42G11C29/44G11C2029/0411
    • A memory controller is equipped with multiple error correction circuits for different complexity levels of errors, but requested data is initially sent to a requesting unit (e.g., processor) via a bypass path which provides the lowest memory latency. The requesting unit performs error detection and, if an error is found, sends a retry select signal to the memory controller. The retry select signal provides an indication of which error correction unit should be used to provide complete correction of the error but add the minimum latency necessary. On the retry transmission, the controller uses the particular error correction unit indicated by the retry select signal. The memory controller can also have a persistent error detection circuit which identifies an address as being defective when an error is repeatedly indicated by multiple retry select signals, and the control logic can automatically transmits the requested data using the appropriate error correction unit.
    • 存储器控制器配备有用于不同复杂度错误水平的多个纠错电路,但是请求的数据最初经由提供最低存储器延迟的旁路路径发送到请求单元(例如,处理器)。 请求单元执行错误检测,并且如果发现错误,则将重试选择信号发送到存储器控制器。 重试选择信号提供了哪个错误校正单元应该用于提供错误的完整校正的指示,但是添加最小等待时间。 在重试传输中,控制器使用由重试选择信号指示的特定纠错单元。 存储器控制器还可以具有持续错误检测电路,其在由多个重试选择信号重复指示错误时将地址标识为有缺陷,并且控制逻辑可以使用适当的纠错单元自动发送所请求的数据。