关键词: RocketIO, GTX, GTP, 高速串行通信, 现场可编程门阵列

Abstract: For the differences between Virtex-5 RocketIOTM GTP and Virtex-6 RocketIOTM GTX adjustments should be made on pre-emphasis/de-emphasis values and reception equalization values,the receiving terminal voltage and differential voltage transmission values, so as to adapt to the data communication between GTP and GTX. By using ChipsCope Pro_IBERT to measure the actual communication parameters to set GTP/GTX transceiver side, this paper defined the data frame structure through custom communication protocol, and designed a new RocketIO data transceiver interface controller. By analyzing the phenomenon of byte misalignment caused by some uncertainty such as high frequency instability, and clock drift, this paper added a data misalignment correction module in custom communication protocol, thus greatly reducing the error rate of data transmission. The experimental results show that high speed serial communication between Virtex-5 RocketIOTM GTP and Virtex-6 RocketIOTM GTX can be implemented, and the data transceiver interface controller is of data transmission stability, low bit error rata and good generality.

Key words: RocketIO, GTX, GTP, high-speed serial communication, Field Programmable Gate Array (FPGA)