Invention Grant
US08127108B2 Apparatus, system and method for prefetching data in bus system 有权
在总线系统中预取数据的装置,系统和方法

  • Patent Title: Apparatus, system and method for prefetching data in bus system
  • Patent Title (中): 在总线系统中预取数据的装置,系统和方法
  • Application No.: US12430939
    Application Date: 2009-04-28
  • Publication No.: US08127108B2
    Publication Date: 2012-02-28
  • Inventor: Haihui Xu
  • Applicant: Haihui Xu
  • Applicant Address: TW Hsin-Tien, Taipei
  • Assignee: Via Technologies, Inc.
  • Current Assignee: Via Technologies, Inc.
  • Current Assignee Address: TW Hsin-Tien, Taipei
  • Agency: Thomas|Kayden
  • Priority: CN200910001521 20090109
  • Main IPC: G06F9/26
  • IPC: G06F9/26
Apparatus, system and method for prefetching data in bus system
Abstract:
A method for prefetching data in a bus system is provided. First, according to an address signal from a master, a prefetching address generator generates a prefetching address signal and transfers it to a first select circuit. In response to a signal from the master indicates that the address is related to the previous address and the control signal is identical to the previous transfer, or in response to a signal from the master indicates that the address and control signals are unrelated to the previous transfer but is matched to a hit logic, a prefetching controller directs the first select circuit to transfer the prefetching address signal to a slave. And the prefetching controller also directs a second select circuit to transfer the prefetched data which is corresponding to the prefetching address signal from the slave to a master.
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