发明授权
- 专利标题： Memory system
- 专利标题（中）： 内存系统
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申请号： US196538申请日： 1988-05-20
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公开(公告)号： US4903234A公开(公告)日： 1990-02-20
- 发明人: Taketoshi Sakuraba , Hisashi Katada , Yoshitaka Ohfusa , Yasufumi Yoshizawa , Toshiaki Arai , Hiroo Miyadera
- 申请人： Taketoshi Sakuraba , Hisashi Katada , Yoshitaka Ohfusa , Yasufumi Yoshizawa , Toshiaki Arai , Hiroo Miyadera
- 申请人地址： JPX Tokyo
- 专利权人： Hitachi, Ltd.
- 当前专利权人： Hitachi, Ltd.
- 当前专利权人地址： JPX Tokyo
- 优先权： JPX62-123794 19870522
- 主分类号： G06F12/14
- IPC分类号： G06F12/14 ; G06F12/02 ; G06F12/10 ; G11C8/06
摘要：
In a memory system having a storage device and a key storage keeping key data controlling an access to the storage device, there is disposed a key address translation structure for obtaining an address of an entry of the key storage based on an address of the storage device to which an access request is issued. As a result, when subdividing the storage device according to the key data setting unit, each subdivided area can be assigned with a variable size and a plurality of sizes are enabled to be specified for the key data setting units at the same time.
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