| 摘要 |
A memory bandwidth control device is capable of significantly improving efficiency of data transfer between an external device and a memory. This invention provides a memory 80 used for temporarily storing and outputting data to be communicated with external devices being connected via input/output ports, and an I/O buffer 2 for dynamically assigning memory bandwidth to external devices requesting data transfer when receiving the data transfer requests from the external devices to the memory 80. As compared with a case of assigning fixed memory bandwidth, efficiency of data transfer to the memory 80 can be significantly improved without wasting memory bandwidth.
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