Patent ID: 9697073
Date: 2017-07-04
CPC Classifications: G06F,H03M

Claim:
1. A method for handling forwarded error in bus width conversion at a communication interface, the method comprising: receiving, at a plurality of write lanes of the communication interface, input data; computing, by a processor, input parity data of the input data; providing, at a plurality of read lanes of the communication interface, output data based on the input data; computing, by the processor, output parity data of the output data; comparing, by the processor, a subset of the input parity data and a respective subset of the output parity data; incrementing, by the processor, in response to comparing the subset of the input parity data and the respective subset of the output parity data, a counter value when the subset of the input parity data does not correspond to the respective subset of the output parity data; comparing, by the processor, the counter value to a first threshold and to a second threshold greater than the first threshold; and computing, by the processor, output forwarded error information and output parity error information based on a result of comparing the counter value to the first threshold and to the second threshold.