| 摘要 |
PROBLEM TO BE SOLVED: To perform a bus failure check during normal information transmission. SOLUTION: A transmitting side device 10 and a receiving side device 20 are connected to each other via a parallel bus 30 that carries in parallel transmission data and an error correcting code based on this transmission data. The transmitting side device 10 has a signal inversion unit 11 for inverting a signal to be sent to the parallel bus 30. The receiving side device 20 has: a signal inversion unit 21 for inverting a received signal from the parallel bus 30; and an error detection unit 22 for performing error detection and error correction based on a signal output from the signal inversion unit 21. The signal inversion unit 11 inverts a signal to be sent to all the bus lines and the signal inversion unit 21 inverts the signal received from all the bus lines, which enables the error detection unit 22 to perform a failure check on the parallel bus 30. COPYRIGHT: (C)2011,JPO&INPIT |
