Delay Through the GTHE4 Transceiver - 8.11 English

CPRI LogiCORE IP Product Guide (PG056)

Document ID
PG056
Release Date
2022-11-16
Version
8.11 English

Delay through the GTHE4 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 - GTHE4 Transceiver plus the additional line rate delay shown below.

Table 4-12: Fixed Contribution to Delay - GTHE4 Transceiver

Block

Latency (UI)

TX

16-bit datapath cores (8b/10b)

85

32-bit datapath cores (8b/10b)

155

64-bit datapath cores (64b/66b)

176

RX

16-bit datapath cores (8b/10b)

134.5

32-bit datapath cores (8b/10b)

248.5

64-bit datapath cores (64b/66b)

125.5