| 摘要 |
A data transmission device (50) includes input circuitry (52), configured to receive a block of data over a network, the block containing an error-checking code, the input circuitry including input error-checking logic (30), which is adapted to detect a discrepancy between the data and the error-checking code and to generate a first error signal indicating whether the discrepancy was detected in the input circuitry. The device also includes output circuitry (56), configured to transmit the block of data, received by the input circuitry, over the network, and including output error-checking logic (60), which is adapted to detect the discrepancy between the data and the error-checking code and to generate a second error signal indicating whether the discrepancy was detected in the output circuitry. A comparator (66) is coupled to receive and compare the first and second error signals, so as to identify a source of the discrepancy. |
