https://www.xilinx.com/support/documentation/application_notes/xapp860.pdf
https://www.xilinx.com/support/documentation/application_notes/xapp855.pdf
https://china.xilinx.com/support/documentation/application_notes/xapp1208-bitslip-logic.pdf
https://china.xilinx.com/support/documentation/application_notes/xapp1274-native-high-speed-io-interfaces.pdf
https://www.xilinx.com/support/documentation/application_notes/xapp585-lvds-source-synch-serdes-clock-multiplication.pdf
https://www.xilinx.com/support/answers/67885.html
