| 摘要 |
PROBLEM TO BE SOLVED: To provide a technology for appropriately coping with an error generating when data is sent using a plurality of buses. SOLUTION: When an error generates in data sending, data received through the bus is stored in an error data storage register 702 of each bus by a CRC check part 607. A comparator 701 of each bus compares data resent through the bus with data stored in the error data storage register 702 by bit, to output a bitwise comparison result as error information. When the error is not detected in the resending data by the CRC check part 607, the error information indicates a portion (bit) where the error generates upon sending in the data. The error information is collected by an error information collecting part 623. COPYRIGHT: (C)2010,JPO&INPIT
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