Title:
アクセス制御装置、アクセス制御システム、プロセッサ、アクセス制御方法およびメモリアクセス制御方法
Document Type and Number:
Japanese Patent JP4643479
Kind Code:
B2
Abstract:
An access control apparatus (10; 50) includes a writer syndrome generator (132) that generates a writer syndrome of writer mask data to mask the parity-added data, the writer syndrome being associated with a writer access ID used when a writer that requests writing of the write data in the memory accesses the memory; a write mask generator (130) that generates the writer mask data based on the writer syndrome, the writer access ID, and a write address in the memory at which the writer writes the write data; a first XOR calculator (102) that obtains first post-operation data by calculating an XOR between the parity-added data and the writer mask data; and a write address converter (150) that converts the write address into another address determined by the writer access ID.
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Inventors:
Tatsunori Kanai
Kenichiro Yoshii
Kenichiro Yoshii
Application Number:
JP2006079689A
Publication Date:
March 02, 2011
Filing Date:
March 22, 2006
Export Citation:
Assignee:
Toshiba Corporation
International Classes:
G06F21/62; G06F12/14; G06F21/71
Domestic Patent References:
| JP2006018685A | ||||
| JP2000181802A |
Attorney, Agent or Firm:
Hiroaki Sakai