Memory device, memory controller and memory system
    1.
    发明公开
    Memory device, memory controller and memory system 有权
    内存设备,内存控制器和内存系统

    公开(公告)号:EP2061036A1

    公开(公告)日:2009-05-20

    申请号:EP08169914.2

    申请日:2007-07-12

    申请人: Fujitsu Limited

    IPC分类号: G11C11/406

    摘要: Provided is a memory device in which the decrease of the effective bandwidth caused by the refresh operation of the memory device has been solved, a memory controller of the memory device, and a memory system thereof. A memory device that is operated in response to a command from a memory controller (82) has a plurality of banks that respectively have memory cores (92) including memory cell arrays and decoders and are selected by bank addresses; and a control circuit, which controls operation of the memory cell arrays within the banks, wherein each of the plurality of banks stores two-dimensionally arrayed data on the basis of a memory mapping of which a memory logical space has a plurality of page areas that are selected by the bank addresses and row addresses, in which the plurality of page areas are arranged in rows and columns, and in which adjacent page areas are associated with different bank addresses, and during a period of horizontal access in which the two-dimensionally arrayed data is accessed horizontally, the control circuit causes the memory cores (92) within banks selected by the bank addresses to execute normal memory operation corresponding to a normal operation command in response to the normal operation command corresponding to the horizontal access, and further causes a memory core (92) within a refresh target bank other than the horizontal access target bank to execute refresh operation in response to a background refresh command.

    摘要翻译: 提供一种存储器件,存储器件的存储器控​​制器及其存储器系统,其中由存储器件的刷新操作引起的有效带宽的减少已经得到解决。 响应于来自存储器控制器(82)的命令而操作的存储器件具有多个存储体,所述存储体设备分别具有包括存储器单元阵列和解码器的存储器核心(92)并且通过存储体地址选择; 以及控制所述存储体内的所述存储单元阵列的动作的控制电路,所述多个存储体的各存储体基于存储器逻辑空间具有多个页面区域的存储器映射来存储二维排列的数据, 由行地址和行地址选择,其中多个页面区域按行和列排列,并且其中相邻页面区域与不同的库地址相关联,并且在二维地在水平访问期间 阵列数据被水平访问时,控制电路响应于与水平访问相对应的正常操作命令,使得由存储体地址所选择的存储体内的存储器核心(92)执行对应于正常操作命令的正常存储器操作,并且进一步使得 在除了水平访问目标库之外的刷新目标库内的存储器核心(92)响应于ba执行刷新操作 ckground刷新命令。

    Memory device, memory controller and memory system
    5.
    发明公开
    Memory device, memory controller and memory system 有权
    内存设备,内存控制器和内存系统

    公开(公告)号:EP2009644A1

    公开(公告)日:2008-12-31

    申请号:EP08160780.6

    申请日:2007-07-12

    申请人: Fujitsu Limited

    IPC分类号: G11C11/408

    摘要: An image memory, image memory system, memory controller and semiconductor integrated circuit that are capable of efficiently accessing a rectangular area of two-dimensionally arrayed data are provided. The semiconductor integrated circuit device in which circuits are integrated on a semiconductor substrate, the semiconductor integrated circuit device comprising: an image processing controller (81) for decoding coded image data; a memory controller (82) for controlling an image memory (86); and a setting register (543) for setting function information that indicates a function the image memory has, wherein the image processing controller (81) outputs information on a coordinate of an origin in a rectangular image and size information on the length and width of the rectangular image, to the memory controller (82), and the memory controller (82) generates commands, addresses, and a start byte signal for accessing the image memory (86), on the basis of the information on the coordinate of the origin, the size information on the length and width, and set information that is set in the setting register (543), the start byte signal indicating a start position of a memory unit area (45) within the image memory (86), which is selected by the address.

    摘要翻译: 提供了能够有效访问二维排列数据的矩形区域的图像存储器,图像存储器系统,存储器控制器和半导体集成电路。 1。一种半导体集成电路装置,其中电路集成在半导体衬底上,所述半导体集成电路装置包括:图像处理控制器(81),用于对编码的图像数据进行解码; 用于控制图像存储器(86)的存储器控​​制器(82); 和用于设定指示图像存储器具有的功能的功能信息的设定寄存器(543),其中图像处理控制器(81)输出关于矩形图像中原点的坐标的信息和关于图像存储器的长度和宽度的尺寸信息 (82),存储器控制器(82)根据原点坐标信息生成用于访问图像存储器(86)的命令,地址和开始字节信号, 关于长度和宽度的大小信息以及设置在设置寄存器(543)中的设置信息,开始字节信号指示图像存储器(86)内的存储器单位区域(45)的开始位置,其被选择 由地址。