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    • 1. 发明申请
    • Memory Protection Unit and a Method for Controlling an Access to a Memory Device
    • 存储器保护单元和用于控制对存储器件的访问的方法
    • US20120144140A1
    • 2012-06-07
    • US13306715
    • 2011-11-29
    • Christine RossaBernd MuellerMarkus FerchCarsten GebauerDieter ThossMichael Ebert
    • Christine RossaBernd MuellerMarkus FerchCarsten GebauerDieter ThossMichael Ebert
    • G06F12/14
    • G06F12/1425G06F21/79
    • A memory protection unit includes at least a first access control unit and a second access control unit programmed for controlling an access to a memory device. Further a method to operate a processing system comprising multiple processing devices and multiple memory protection units associated to the multiple processing devices, The access to the memory by a processing device is approved if first access control unit and second access control unit of the memory protection associated to the processing device approves the access and access is rejected if first access control unit or second access control unit rejects the access. The first access control unit is programmable by the associated processing device alone and the programming of the second access control unit is readable by an additional processing device which is to be used in a system with multiple programming devices, not the associate processing device.
    • 存储器保护单元至少包括第一访问控制单元和被编程用于控制对存储器设备的访问的第二访问控制单元。 此外,操作包括与多个处理设备相关联的多个处理设备和多个存储器保护单元的处理系统的方法。如果存储器保护的第一访问控制单元和第二访问控制单元相关联,则由处理设备访问存储器被批准 如果第一访问控制单元或第二访问控制单元拒绝该访问,则处理设备批准该访问和访问被拒绝。 第一访问控制单元可以由相关联的处理设备单独编程,并且第二访问控制单元的编程可由附加处理设备读取,该附加处理设备将用于具有多个编程设备的系统中,而不是关联处理设备。
    • 2. 发明授权
    • Memory protection unit and method for controlling an access to memory device
    • 用于控制对存储器件的访问的存储器保护单元和方法
    • US08984245B2
    • 2015-03-17
    • US13306715
    • 2011-11-29
    • Christine RossaBernd MuellerMarkus FerchCarsten GebauerDieter ThossMichael Ebert
    • Christine RossaBernd MuellerMarkus FerchCarsten GebauerDieter ThossMichael Ebert
    • G06F12/14G06F21/79
    • G06F12/1425G06F21/79
    • A memory protection unit includes at least a first access control unit and a second access control unit programmed for controlling an access to a memory device. Further a method to operate a processing system comprising multiple processing devices and multiple memory protection units associated to the multiple processing devices. The access to the memory by a processing device is approved if first access control unit and second access control unit of the memory protection associated to the processing device approves the access and access is rejected if first access control unit or second access control unit rejects the access. The first access control unit is programmable by the associated processing device alone and the programming of the second access control unit is readable by an additional processing device which is to be used in a system with multiple programming devices, not the associate processing device.
    • 存储器保护单元至少包括第一访问控制单元和被编程用于控制对存储器设备的访问的第二访问控制单元。 另外,一种操作处理系统的方法,该处理系统包括与多个处理设备相关联的多个处理设备和多个存储器保护单元。 如果与处理设备相关联的存储器保护的第一访问控制单元和第二访问控制单元批准访问并且如果第一访问控制单元或第二访问控制单元拒绝访问则访问被拒绝,由处理设备访问存储器被批准 。 第一访问控制单元可以由相关联的处理设备单独编程,并且第二访问控制单元的编程可由附加处理设备读取,该附加处理设备将用于具有多个编程设备的系统中,而不是关联处理设备。