General Description: In the 8b/10b Decoder core, an error should occur when five or more zeros occur in succession, and code_err should go high. However, when the input is at 1000000111, this does not happen.
Solution
This issue has been fixed in Version 2_0 of 8b/10b Decoder, which is available in IP_Update#3 (D_IP3) and newer IP updates.