| 摘要 |
PROBLEM TO BE SOLVED: To speed up data transfer by serial ATA (AT attachment). SOLUTION: The data transfer control device comprises a receiving circuit receiving transmission data transmitted from a counter device in a predetermined data unit; an error detection circuit checking the transmission data to detect for presence/absence of error in the transmission data; a FIFO circuit storing the transmission data; and a control circuit controlling to transfer the transmission data stored in the FIFO circuit to a latter-stage device based on an address pointer. The data transfer control device increments the address pointer by a predetermined data unit portion, when the error detection circuit detects no error after receiving the transmission data to receive the following transmission data, stops data transfer to the latter-stage device, when the error detection circuit detects an error, to transmit an error notification to the counter device, decrements the address pointer by a predetermined data unit portion, and receives the following transmission data. COPYRIGHT: (C)2008,JPO&INPIT
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