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RMcco's avatar
RMcco
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7 years ago

In Triple Speed Ethernet core, what does the COPPER_LINK_STATUS refer to?

I'm debugging an Ethernet link that fails after several hours of temperature testing. We're using the TSE core in an Arria 10, configured in the 10/100/1000Mb Ethernet MAC with 1000BASE-X/SGMII PCS c...
RMcco's avatar
RMcco
Icon for New Contributor rankNew Contributor
7 years ago

Hi SK -

I believe I tried restarting auto-negotiation to no effect, but will need to confirm. If it helps, below are register dumps in the good and bad states for the PCS block (note that the addresses are byte addresses and not word addresses). I captured two different failures (rebooted in between and ran until failure again) - they seem to have differences that may be significant.

Also, the PHY we're using is a TI DP83867, if that makes any difference.

Thanks -

-Ryan

Good state:

0x00040a00 0x0000:1140

0x00040a04 0x0000:00a9

0x00040a08 0x0000:0000

0x00040a0c 0x0000:0000

0x00040a10 0x0000:41a0

0x00040a14 0x0000:d801

0x00040a18 0x0000:0003

0x00040a1c 0x0000:0000

0x00040a20 0x0000:0000

0x00040a24 0x0000:0000

0x00040a28 0x0000:0000

0x00040a2c 0x0000:0000

0x00040a30 0x0000:0000

0x00040a34 0x0000:0000

0x00040a38 0x0000:0000

0x00040a3c 0x0000:0000

0x00040a40 0x0000:0000

0x00040a44 0x0000:1101

0x00040a48 0x0000:0d40

0x00040a4c 0x0000:0003

0x00040a50 0x0000:0003

0x00040a54 0x0000:0000

0x00040a58 0x0000:0000

0x00040a5c 0x0000:0000

0x00040a60 0x0000:0000

0x00040a64 0x0000:0000

0x00040a68 0x0000:0000

0x00040a6c 0x0000:0000

0x00040a70 0x0000:0000

0x00040a74 0x0000:0000

0x00040a78 0x0000:0000

0x00040a7c 0x0000:0000

Bad state 1 ( Reg 0x5 = 0x0040)

0x00040a00 0x0000:1140

0x00040a04 0x0000:00a9

0x00040a08 0x0000:0000

0x00040a0c 0x0000:0000

0x00040a10 0x0000:41a0

0x00040a14 0x0000:0040

0x00040a18 0x0000:0003

0x00040a1c 0x0000:0000

0x00040a20 0x0000:0000

0x00040a24 0x0000:0000

0x00040a28 0x0000:0000

0x00040a2c 0x0000:0000

0x00040a30 0x0000:0000

0x00040a34 0x0000:0000

0x00040a38 0x0000:0000

0x00040a3c 0x0000:0000

0x00040a40 0x0000:0000

0x00040a44 0x0000:1101

0x00040a48 0x0000:0d40

0x00040a4c 0x0000:0003

0x00040a50 0x0000:0003

0x00040a54 0x0000:0000

0x00040a58 0x0000:0000

0x00040a5c 0x0000:0000

0x00040a60 0x0000:0000

0x00040a64 0x0000:0000

0x00040a68 0x0000:0000

0x00040a6c 0x0000:0000

0x00040a70 0x0000:0000

0x00040a74 0x0000:0000

0x00040a78 0x0000:0000

Bad state 2 (Reg 0x05 = 0xC2A0):

0x00040a00 0x0000:1140

0x00040a04 0x0000:00a9

0x00040a08 0x0000:0000

0x00040a0c 0x0000:0000

0x00040a10 0x0000:41a0

0x00040a14 0x0000:c2a0

0x00040a18 0x0000:0003

0x00040a1c 0x0000:0000

0x00040a20 0x0000:0000

0x00040a24 0x0000:0000

0x00040a28 0x0000:0000

0x00040a2c 0x0000:0000

0x00040a30 0x0000:0000

0x00040a34 0x0000:0000

0x00040a38 0x0000:0000

0x00040a3c 0x0000:0000

0x00040a40 0x0000:0000

0x00040a44 0x0000:1101

0x00040a48 0x0000:0d40

0x00040a4c 0x0000:0003

0x00040a50 0x0000:0003

0x00040a54 0x0000:0000

0x00040a58 0x0000:0000

0x00040a5c 0x0000:0000

0x00040a60 0x0000:0000

0x00040a64 0x0000:0000

0x00040a68 0x0000:0000

0x00040a6c 0x0000:0000

0x00040a70 0x0000:0000

0x00040a74 0x0000:0000

0x00040a78 0x0000:0000

0x00040a7c 0x0000:0000