ZHCSHD7A January 2018 – April 2020 ADC12DJ2700
PRODUCTION DATA.
The data link layer converts the 8-bit octets from the transport layer into 10-bit characters for transmission across the link using 8b, 10b encoding. 8b, 10b encoding provides DC balance for AC-coupling of the SerDes links and a sufficient number of edge transitions for the receiver to reliably recover the data clock. 8b, 10b also provides some amount of error detection where a single bit error in a character likely results in either not being able to find the 10-bit character in the 8b, 10b decoder lookup table or incorrect character disparity.