Electrical computers and digital processing systems: memory – Storage accessing and control – Control technique
Reexamination Certificate
2005-09-13
2005-09-13
Elmore, Stephen C. (Department: 2186)
Electrical computers and digital processing systems: memory
Storage accessing and control
Control technique
C711S154000, C711S167000
Reexamination Certificate
active
06944730
ABSTRACT:
A read/write scheduling apparatus of controller chip and method for the same. The read/write scheduling apparatus is used for arbitrating a plurality of read and write requests from a CPU to access a memory unit. The read request has higher priority in a host bandwidth limited case and the write requests in write queues are not sent until a predetermined amount of write requests are accumulated. In a DRAM bandwidth limited case, the read and the write requests have the same priority. The scheduling apparatus counts the number of the read and write requests to the memory unit within a predetermined time, the operation is changed to DRAM bandwidth limited case in case that the counted number is larger than a predetermined number.
REFERENCES:
patent: 5842038 (1998-11-01), Williams et al.
patent: 6088772 (2000-07-01), Harriman et al.
patent: 6092158 (2000-07-01), Harriman et al.
patent: 6295586 (2001-09-01), Novak et al.
patent: 6496906 (2002-12-01), Novak et al.
patent: 6564304 (2003-05-01), Van Hook et al.
patent: 6601151 (2003-07-01), Harris
patent: 2003/0070055 (2003-04-01), Johnson et al.
patent: 2003/0079073 (2003-04-01), Richard et al.
Lai Jiin
Wu Sheng-Chung
Elmore Stephen C.
Rosenberg , Klein & Lee
Via Technologies Inc.
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