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    • 25. 发明申请
    • BUFFER CONTROL DEVICE AND BUFFER MEMORY DEVICE
    • 缓冲器控制器件和缓冲器存储器件
    • US20100180095A1
    • 2010-07-15
    • US12095610
    • 2006-11-28
    • Masanori FujibayashiNobuo HigakiKazushi KurataTomoko Matsui
    • Masanori FujibayashiNobuo HigakiKazushi KurataTomoko Matsui
    • G06F12/14
    • G06F5/14G06F2205/062
    • The buffer control device of this invention includes: a pointer holding unit which holds a virtual pointer different from a read pointer and a write pointer; an access control unit that controls an access to a ring buffer; a judging unit that judges whether or not one of the read pointer and the write pointer has reached an address substantially identical to an address indicated by the virtual pointer; and disabling unit that disables a normal access using the one of the read pointer and the write pointer, when the judging unit judges that the one of the read pointer and the write pointer has reached the address substantially identical to the address indicated by the virtual pointer, the normal access being controlled by the access control unit, wherein the access control unit further controls a reaccess to the ring buffer.
    • 本发明的缓冲器控制装置包括:保持与读指针不同的虚拟指针和写指针的指针保持单元; 访问控制单元,其控制对环形缓冲器的访问; 判断单元,判断读指针和写指针之一是否达到与虚拟指针所指示的地址基本相同的地址; 以及禁止单元,其在所述读取指针和所述写入指针之一达到与所述虚拟指针所指示的地址基本相同的地址的情况下,使用所述读取指针和所述写入指针中的一者禁止正常访问 正常访问由访问控制单元控制,其中访问控制单元进一步控制对环形缓冲器的重新访问。