Arria® V Device Handbook: Volume 2: Transceivers

ID 683573
Date 5/29/2020
Document Table of Contents

4.9. Deterministic Latency Protocols—CPRI and OBSAI

A deterministic latency option is available for use in high-speed serial interfaces such as the Common Public Radio Interface (CPRI) and OBSAI Reference Point 3 (OBSAI RP3). Both CPRI and OBSAI RP3 protocols place stringent requirements on the amount of latency variation that is permissible through a link that implements these protocols.

Arria V GT devices also support 9.8304 Gbps CPRI with PMA direct configuration; PCS is implemented in soft logic.

Figure 127. Transceiver Datapath in Deterministic Latency Mode