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DS125DF410: DS125DF410 4 channels CDR cannot be locked

Part Number: DS125DF410

hi 

Good day

Between the two FPGAs, I use two DS125DF410 chips to connect to the FPGA GTHx4 transmitting and receiving, and configure the chip to start through the SMBUS bus. The registers are as follows, but one DS125DF410 4 channel CDR can be locked, and the other DS125DF410 4 channel CDR But it can't be locked, can you take a look for me? Thank you

ADDR   value
0xFF   0d
0x36   31
0x2F   F6
0x64   FF
0x0A   10
0x31   00
0x03   c5
0x15   30
0x2d   30