Encoding 8b10b 64b66b 128b130b 128b132b

8b10b, 64b66b, 128b130b, and 128b132b encoding are common methods for reducing errors caused by long strings of 1s with embedded isolated 0s, and long strings of 0s with embedded isolated 1s. By default, no encoding is performed (Eye Source option do_encoding =0). The VerifEye, QuickEye, AMI, or Transient Source can be enabled to do encoding on the transmitted data (do_encoding =1 for 8b10b, 2 for 64b66b, 3 for 128b130b, and 4 for 128b132b).

Notes:

1. Option do_encoding is valid only when modulation=NRZ on the Eye Source. do_encoding is ignored when modulation=PAM4.
2. Peak Distortion Analysis (PDA) considers the encoding when generating the worst-case bit pattern.