发明名称 |
DIGITAL SYSTEM AND METHOD |
摘要 |
PROBLEM TO BE SOLVED: To provide a method and a structure for dynamically blocking access of a request signal to a shared bus. SOLUTION: The shared bus manages a request for access to an address space. A nonreal time master and a real time master compete about their requests for address space access by presenting the address access requests to the shared bus. An access dynamic block by R with respect to the shared bus is accomplished by using a request limiter. The request limiter is a device connected to a real time clock and uses algorithm for deciding a time when the access of R to the shared bus is made performable or nullified. The algorithm uses a window scheme that allows the access of R to the shared bus every N-th clock cycle. Here, the value of an integer N can be supplied to the request limiter by the real time master.
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申请公布号 |
JP2001290762(A) |
申请公布日期 |
2001.10.19 |
申请号 |
JP20010073048 |
申请日期 |
2001.03.14 |
申请人 |
INTERNATL BUSINESS MACH CORP <IBM> |
发明人 |
ERIC M FOSTER;STEVEN B HERNDON;ERIC E LETTER;RONALD S SVECK |
分类号 |
G06F13/362;G06F13/00;G09G1/16;(IPC1-7):G06F13/362 |
主分类号 |
G06F13/362 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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