| 摘要 |
<P>PROBLEM TO BE SOLVED: To enable high speed write by reducing the overhead of write processing due to a time required for data transfer from the outside to a controller of a memory card (non-volatile storage device) with a flash memory as a storage medium and data transfer from the controller to the flash memory in writing the data. <P>SOLUTION: A buffer I/F 109 divides data of sector units input from a host 107 to a host I/F 106 synchronously with an external clock into first word units, and transfers the data to a buffer memory 108 synchronously with an internal clock. Also, the buffer I/F 109 divides the data of the sector units stored in the buffer memory 108 into second word units, and transfers the data to a flash memory I/F 107 synchronously with the internal clock. The flash memory I/F 107 writes the transferred data of the sector units in a flash memory 103. <P>COPYRIGHT: (C)2009,JPO&INPIT |
