METHOD AND APPARATUS FOR REDUNDANT MEMORY CONFIGURATION IN VOLTAGE ISLAND
    1.
    发明申请
    METHOD AND APPARATUS FOR REDUNDANT MEMORY CONFIGURATION IN VOLTAGE ISLAND 失效
    电压岛内冗余存储器配置的方法与装置

    公开(公告)号:US20090097335A1

    公开(公告)日:2009-04-16

    申请号:US12330936

    申请日:2008-12-09

    CPC分类号: G11C29/789

    摘要: A method and apparatus to configure redundant memory elements in a system on a chip (SoC) having discrete voltage domains (islands). A plurality of memories are provided for each voltage island, each containing redundancy elements or having the capability to access redundant memory elements in a neighboring voltage domain; a fuse cell stores configuration information for controlling the switching of memory elements of the plurality of memories; a shift register receives and retains configuration information on a memory array from the fuse cell corresponding to each memory; and a control circuit directs operation of the shift register. The shift register includes a shift portion for receiving the data of the configuration information and transferring the data to another shift register, and a latch portion for retaining the data inputted to the shift portion. The control circuit controls whether or not the data of the shift register, which is inputted to the shift portion, is to be retained in the latch portion.

    摘要翻译: 一种在具有离散电压域(岛)的芯片(SoC)上的系统中配置冗余存储器元件的方法和装置。 为每个电压岛提供多个存储器,每个电压岛包含冗余元件或具有访问相邻电压域中的冗余存储器元件的能力; 熔丝单元存储用于控制多个存储器的存储元件的切换的配置信息; 移位寄存器从对应于每个存储器的熔丝单元接收并保存关于存储器阵列的配置信息; 并且控制电路指示移位寄存器的操作。 移位寄存器包括用于接收配置信息的数据并将数据传送到另一移位寄存器的移位部分,以及用于保存输入到移位部分的数据的锁存部分。 控制电路控制输入到移位部分的移位寄存器的数据是否被保留在锁存部分中。