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    • 2. 发明申请
    • WRITE DATA MASK METHOD AND SYSTEM
    • 写数据掩码方法和系统
    • WO2008024336A3
    • 2008-05-08
    • PCT/US2007018469
    • 2007-08-21
    • ATI TECHNOLOGIES INCXU XIAOLINGKRUGER WARREN F
    • XU XIAOLINGKRUGER WARREN F
    • G06F13/16G11C7/10G11C7/22
    • G11C7/1006G11C7/1078G11C7/1096
    • In various embodiments, dedicated mask pins are eliminated by sending a data mask on address lines of the interface. A memory controller receives a request for a memory write operation from a memory client and determines the granularity of the write data from a write data mask sent by the client. Granularity, as used herein, indicates a quantity of write data to which each bit of the received write data mask applies. In an embodiment, the memory controller generates a particular write command and a particular write data mask based on the granularity of the write data. The write command generated is typically the most efficient of several write commands available, but embodiments are not so limited. The write command is transmitted on command lines of the interface, and the write data mask is transmitted on address lines of the interface.
    • 在各种实施例中,通过在接口的地址线上发送数据掩码来消除专用掩码引脚。 存储器控制器从存储器客户机接收对存储器写入操作的请求,并且根据由客户端发送的写入数据掩码确定写入数据的粒度。 如本文所使用的,粒度表示所接收的写数据掩码的每个位适用的写数据量。 在一个实施例中,存储器控制器基于写入数据的粒度生成特定的写入命令和特定的写入数据掩码。 所生成的写入命令通常是可用的多个写入命令中最有效的,但实施例不限于此。 写命令在接口的命令行上传输,写数据掩码在接口的地址线上传输。