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DS320PR410: When using the DS320PR410, the Pin Mode does not work

user6481287
Expert 1200 points

Part Number: DS320PR410

When using the DS320PR410, I encountered a problem where the chip couldn't work. I hope you can help analyze the issue.

The Pin Mode is adopted and the configuration is as follows

MODE---L0

EQ0/ EQ1--- L0

"GAIN suspended"

RX_DET--- L0

PD--- L0

Among them, PTX and PRX are directly connected to the connector.

Currently, if the redriver chip is directly removed and TX and RX are short-circuited with a wire, the test can pass. The test failed after using the redriver chip.

Among them, the data runs the pure PHY layer BIST test stream, sending the PRBS (LFSR31) differential serial code stream (without packet structure) at a rate of PCIe gen1