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
Table: Fixed Contribution to Delay - GTYE3 Transceiver
plus the additional line rate delay shown below.
Table 4-11:
Fixed Contribution to Delay - GTYE3 Transceiver
|
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
|