USB 3.2 ENGINEERING CHANGE NOTICE Gen1 SSC df/dt Limit USB 3.2 Revision 1.0

This ECN relaxes the requirement of Gen 2 SKP OS insertion in Polling.RxEQ and to make it optional for Gen 2 SKP OS insertion in Polling.RxEQ.

This ECN removes the radio friendly SSC -1700 to -5300ppm contents from the USB3.2 Specification. It is believed it is not used currently and Gen1x1 BLRs may not be able to lock to this SSC profile and/or perform clock switching and meet the tCDR_SLEW_MAX requirement.

USB 3.2 ENGINEERING CHANGE NOTICE Gen 1x2 SKP OS Correction USB 3.2_r1.0 Sep. 22, 2017

USB 3.2 ENGINEERING CHANGE NOTICE The change proposed is the addition of a system level RFI (radio frequency interference) limit for systems with USB Type C connector. This applies to hosts, hubs and dual-role devices.

USB 3.2 ENGINEERING CHANGE NOTICE Bit-level re-timers which use the recovered clock from the input data stream as the input clock for the transmitter can pass on low frequency jitter, which can in turn result in accumulation of excessive low frequency jitter in systems with cascaded bit -level Retimers. Current JTF Jitter Gain limit was chosen analytically, empirical results of early Retimers implementations show a higher realistic jitter gain below 500kHz with no impact on Jitter tolerance requirements contained in Section 6.8.5. This ECN changes the Max. Limit of JTF Jitter Gain parameter.

trdp官方开源代码，可在多平台编译运行（linux，VxWorks，windows，实时系统等），自己已经在linux平台基于该官方代码进行二次开发，完美！

FPGA与（海德汉ECN...）码盘通信CRC校验模块Verilog代码

铁路电子设备--列车通信网络(TCN)--第3-4部分：以太网组成的网络(ECN)