Semiconductor memory system and memory module
    32.
    发明申请
    Semiconductor memory system and memory module 审中-公开
    半导体存储器系统和存储器模块

    公开(公告)号:US20070079057A1

    公开(公告)日:2007-04-05

    申请号:US11239829

    申请日:2005-09-30

    IPC分类号: G06F12/00 G06F13/00

    CPC分类号: G06F13/1673 G06F13/1684

    摘要: A semiconductor memory system is disclosed. In one embodiment, the semiconductor memory system and memory module of the present invention provides a buffer, wherein at least one write buffer chip on the memory module is only buffering and registering write data, command and address signals written from a memory controller to the memory chips. As read data are written back from each memory chip directly to the memory controller through unidirectional point-to-point read data lines the present semiconductor memory system achieves a low latency as compared with a fully buffered DIMM concept. As read data are only unidirectional a high transmission bandwidth can be achieved.

    摘要翻译: 公开了半导体存储器系统。 在一个实施例中,本发明的半导体存储器系统和存储器模块提供了缓冲器,其中存储器模块上的至少一个写入缓冲器芯片仅缓冲并将从存储器控制器写入的写数据,命令和地址信号注册到存储器 筹码 由于读取数据通过单向点对点读取数据线直接从每个存储器芯片写回存储器控制器,与全缓冲DIMM概念相比,本半导体存储器系统实现了低延迟。 由于读取数据只是单向的,所以可以实现高传输带宽。

    Bus termination system and method
    34.
    发明授权
    Bus termination system and method 有权
    总线终端系统及方法

    公开(公告)号:US08041865B2

    公开(公告)日:2011-10-18

    申请号:US12185472

    申请日:2008-08-04

    IPC分类号: G06F13/00 H03K17/16

    CPC分类号: G06F13/4086

    摘要: A memory system includes a number of integrated circuit chips coupled to a bus. Each of the integrated circuit chips has an input/output node coupled to the bus, the input/output node having a programmable on-die termination resistor. The input/output node of one of the integrated circuit chips is accessed via the bus. The programmable on-die termination resistor of each of the integrated circuit chips is independently set to a termination resistance. The termination resistance is determined by a transaction type and which of the plurality memory devices is being accessed, which information can be transmitted over a separate transmission control bus.

    摘要翻译: 存储器系统包括耦合到总线的多个集成电路芯片。 每个集成电路芯片具有耦合到总线的输入/输出节点,该输入/输出节点具有可编程的片上终端电阻器。 通过总线访问集成电路芯片之一的输入/输出节点。 每个集成电路芯片的可编程片上终端电阻独立地设置为终端电阻。 终端电阻由交易类型和正在被访问的多个存储器件中的哪一个确定,哪些信息可以通过单独的传输控制总线传输。