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    • 8. 发明申请
    • Methods and apparatus for high bandwidth random access using dynamic random access memory
    • 使用动态随机存取存储器进行高带宽随机访问的方法和装置
    • US20050138276A1
    • 2005-06-23
    • US10742021
    • 2003-12-17
    • Muraleedhara NavadaRohit VermaMiguel Guerrero
    • Muraleedhara NavadaRohit VermaMiguel Guerrero
    • G06F12/00G06F12/06G06F13/16
    • G06F13/1647G06F12/06
    • The inventive subject matter provides various apparatus and methods to perform high-speed memory read accesses on dynamic random access memories (“DRAMs”) for read-intensive memory applications. In an embodiment, at least one input/output (“I/O”) channel of a memory controller is coupled to a pair of DRAM chips via a common address/control bus and via two independent data busses. Each DRAM chip may include multiple internal memory banks. In an embodiment, identical data is stored in each of the DRAM banks controlled by a given channel. In another embodiment, data is substantially uniformly distributed in the DRAM banks controlled by a given channel, and read accesses are uniformly distributed to all of such banks. Embodiments may achieve 100% read utilization of the I/O channel by overlapping read accesses from alternate banks from the DRAM pair.
    • 本发明主题提供用于对用于读取密集型存储器应用的动态随机存取存储器(“DRAM”)执行高速存储器读取访问的各种装置和方法。 在一个实施例中,存储器控制器的至少一个输入/输出(“I / O”)通道经由公共地址/控制总线和经由两个独立的数据总线耦合到一对DRAM芯片。 每个DRAM芯片可以包括多个内部存储器组。 在一个实施例中,相同的数据被存储在由给定信道控制的每个DRAM组中。 在另一个实施例中,数据基本均匀地分布在由给定信道控制的DRAM组中,并且读取访问被均匀分布到所有这些存储体。 实施例可以通过重叠来自DRAM对的备用组的读取访问来实现I / O通道的100%的读取利用率。