Delay through the GTHE2 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.
Block | Latency (UI) | |
---|---|---|
TX | 16-bit datapath cores | 113.75 UI |
32-bit datapath cores | 221.5 UI | |
RX | 16-bit datapath cores | 223 UI |
32-bit datapath cores | 421 UI |