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    • 6. 发明授权
    • Method and system for controlling the memory access operation performed by a central processing unit in a computer system
    • 用于控制由计算机系统中的中央处理单元执行的存储器访问操作的方法和系统
    • US06446172B1
    • 2002-09-03
    • US09335602
    • 1999-06-18
    • Chia-Hsin ChenNai-Shung Chang
    • Chia-Hsin ChenNai-Shung Chang
    • G06F1208
    • G06F12/0859G06F13/161
    • A memory access control method and system is provided for use on a computer system to control the memory access operation by a central processing unit (CPU) to a memory unit in a more efficient manner than the prior art. This memory access control method and system is characterized by, for each read request from the CPU, the prompt transfer of the corresponding internal read-request signal to the memory control unit, right after it is issued and without waiting until the CPU issues the L1 write-back signal of the current read request. If the current read request is a hit to the cache memory, a read-stop signal is promptly issued to stop the current read operation on the memory unit, and then a cache write-back operation is performed to write the cache data back into the memory unit. This method and system can help reduce the period of waiting states by the CPU, thus increasing the overall memory access performance by the CPU and the overall system performance of the computer system.
    • 提供存储器访问控制方法和系统,用于在计算机系统上以比现有技术更有效的方式将中央处理单元(CPU)的存储器访问操作控制到存储器单元。 这种存储器访问控制方法和系统的特征在于,对于来自CPU的每个读取请求,在相应的内部读取请求信号被发出之后立即将其传送到存储器控制单元,并且不等待直到CPU发出L1 当前读取请求的回写信号。 如果当前读取请求是对高速缓存存储器的命中,则立即发出读停止信号以停止对存储器单元的当前读取操作,然后执行高速缓存回写操作以将高速缓存数据写回到 存储单元 该方法和系统可以帮助减少CPU等待状态的时间,从而提高CPU的整体内存访问性能以及计算机系统的整体系统性能。
    • 8. 发明授权
    • Method for performing block management using dynamic threshold, and associated memory device and controller thereof
    • 使用动态阈值执行块管理的方法,以及相关联的存储器件及其控制器
    • US09104546B2
    • 2015-08-11
    • US13014735
    • 2011-01-27
    • Chi-Lung WangChia-Hsin ChenChien-Cheng Lin
    • Chi-Lung WangChia-Hsin ChenChien-Cheng Lin
    • G06F13/12G06F12/02
    • G06F12/0246G06F12/10G06F2212/7201
    • A method for performing block management is provided. The method is applied to a controller of a Flash memory, where the Flash memory includes a plurality of blocks. The method includes: adjusting a dynamic threshold according to at least one condition; and comparing a valid/invalid page count of a specific block of the plurality of blocks with the dynamic threshold to determine whether to erase the specific block. An associated memory device and a controller thereof are also provided, where the memory device includes the Flash memory and the controller. In particular, the controller includes a read only memory (ROM) arranged to store a program code, and further includes a microprocessor arranged to execute the program code to control access to the Flash memory and manage the plurality of blocks, where under control of the microprocessor, the controller operates according to the method.
    • 提供了一种执行块管理的方法。 该方法应用于闪速存储器的控制器,其中闪速存储器包括多个块。 该方法包括:根据至少一个条件调整动态阈值; 以及将所述多个块中的特定块的有效/无效页面计数与所述动态阈值进行比较,以确定是否擦除所述特定块。 还提供了一种相关联的存储器件及其控制器,其中存储器件包括闪存和控制器。 特别地,控制器包括被布置为存储程序代码的只读存储器(ROM),并且还包括微处理器,其被布置为执行程序代码以控制对闪存的访问并管理多个块,其中在 微处理器,控制器根据方法进行操作。
    • 9. 发明授权
    • Memory card and method for handling data updating of a flash memory
    • 用于处理闪存的数据更新的存储卡和方法
    • US08195870B2
    • 2012-06-05
    • US12050205
    • 2008-03-18
    • Chia-Hsin Chen
    • Chia-Hsin Chen
    • G06F12/00
    • G06F12/0246
    • The invention provides a method for handling data updating of a flash memory. In one embodiment, the flash memory comprises a mother block comprising a plurality of updated pages to be updated. First, a spare block, recording no data, is popped as a file allocation table (FAT) block corresponding to the mother block. Data for updating the updated pages of the mother block is then written to a plurality of replacing pages of the FAT block. Finally, a plurality of mapping relationships between the replacing pages and the updated pages are recorded in a page mapping table stored in the FAT block.
    • 本发明提供了一种处理闪速存储器的数据更新的方法。 在一个实施例中,闪速存储器包括母块,其包括要更新的多个更新的页面。 首先,将不记录数据的备用块作为与母块对应的文件分配表(FAT)块而弹出。 然后将用于更新母块的更新页面的数据写入FAT块的多个替换页面。 最后,替换页面和更新页面之间的多个映射关系被记录在存储在FAT块中的页面映射表中。