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    • 8. 发明授权
    • Electronic data processing device with secured memory access
    • 具有安全存储器访问的电子数据处理设备
    • US07555617B2
    • 2009-06-30
    • US11008934
    • 2004-12-13
    • Peter TimmermansCarl Van HimbeeckMark Vanophalvens
    • Peter TimmermansCarl Van HimbeeckMark Vanophalvens
    • G06F13/00G06F13/16
    • G06F12/1441
    • An electronic data processing device includes a data processing member provided for controlling, based on first and second encoded data, a secured operation initiated by a user, a memory which is configurable in order to delimit at least one secured memory part within that memory, to each secured memory parts there being assigned a dedicated address range. The data processing member includes N (N≧2) processing units of which M (M≦N−1) processing units are provided to process the secured operation and at least one of the remaining N-M processing units is provided for processing application data, to each of the M processing units there is assigned at least one of the secured memory parts via of a configuration element controlled by a selected one of the M processing units. The second memory is provided with a memory access controller provided for controlling access to the second memory. The memory controller is provided for detecting an access request to a protected memory address, belonging to those ranges, when issued by one of a N-M processing units and for overruling a detected protected address.
    • 电子数据处理装置包括数据处理部件,该数据处理部件基于第一和第二编码数据来控制由用户发起的安全操作,可配置的存储器,以便限定该存储器内的至少一个安全存储器部件, 每个安全的存储器部分被分配专用的地址范围。 数据处理部件包括N(N> = 2)处理单元,其中提供M(M <= N-1)个处理单元以处理安全操作,并且提供剩余的NM处理单元中的至少一个用于处理应用数据 对于每个M个处理单元,通过由所选择的M个处理单元中的一个控制的配置元件来分配至少一个安全存储器部分。 第二存储器设置有用于控制对第二存储器的访问的存储器访问控制器。 提供存储器控制器,用于当由N-M个处理单元中的一个发出时被检测对属于这些范围的受保护存储器地址的访问请求,并且用于推翻检测到的受保护的地址。