Delay through the GTYE3 transceiver consists of a variable component (barrel shift or TX and RX gearbox latency) and a fixed component. The fixed component is made up of the delay shown in the following table plus the additional line rate delay shown below.
| Block | Latency (UI) | |
|---|---|---|
| TX | 16-bit datapath cores (8b/10b) | 99 |
| 32-bit datapath cores (8b/10b) | 189 | |
| 32-bit datapath cores (64b/66b) | 190 | |
| 64-bit datapath cores (64b/66b) | 352 | |
| RX | 16-bit datapath cores (8b/10b) | 134.5 |
| 32-bit datapath cores (8b/10b) | 256.5 | |
| 32-bit datapath cores (64b/66b) | 129.5 | |
| 64-bit datapath cores (64b/66b) | 225.5 | |