| 摘要 |
PROBLEM TO BE SOLVED: To provide a data transfer controller that realizes high speed data transfer by reducing an overhead of processing of a firmware and to provide an electronic device. SOLUTION: In a data transfer controller in compliance with the IEEE1394 standards, on the occurrence of a header CRC error, a header pointer is returned to a preceding position to inactivate a packet, and in the case of Unktcode, the packet is inactivated by not writing the packet to a RAM. Furthermore, a reception end status is not generated. A register storing a status of a header CRC error is provided. On the occurrence of a data CRC error, the header pointer is not restored but the data pointer is restored to the preceding position. A 1st mode inactivating a received broadcast packet and a 2nd mode validating it can be set. In the case of receiving a broadcast packet in the 1st mode, the packet it not written in the RAM.
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