Hi,
We are using the AM6546 in our Design with DP83867ERGZ for 1000BASE connection(LAN and WAN) in our Project.
We are doing the Hardware Validation and are doing the Electrical signal measurements to verify the RGMII v2.0 Timing Requirements.
Below are our measurements
| RGMII Timing Parameters 1000BASE | |||
| Tx/Rx | Parameter | Requirement | Measured |
| RX 1000BASE | Rx Setup Time | 2ns | 2.8ns |
| Rx Hold Time | 2ns | 5.3ns | |
| Rx Clock Cycle | 8ns | 8ns | |
| Rx Clock Fall Time | 0.75ns | 1.75ns | |
| Rx Clock Rise Time | 0.75ns | 1.75ns | |
From our measurements we see the Rx signals are not meeting the Timing requirements.
Since these are just point to point connections with only series termination resistor in between, we do not have any control in hardware for these signals.
We need your help to analyze and resolve this issue.
I have attached the snapshots of our measurements as well.
Please let us know how to resolve this.
Regards
Tauseef Kaziwaveforms_06102020_RGMII.zip
