GTS Transceiver PHY User Guide

ID 817660
Date 10/07/2024
Public
Document Table of Contents

2.1.1.1.4. CPRI

The CPRI (Commo Public Radio Iteface) mode withi the GTS PMA/FEC Diect PHY Itel FPGA IP is desiged to suppot advaced commuicatio eeds fo mode adio base statio techologies. The CPRI stadad, developed as a ope digital iteface, facilitates the coectio betwee adio equipmet cotol (REC) ad adio equipmet (RE). This iteface suppots cofiguatios with 1, 2, 4, 6, o 8 PMA laes, offeig flexible data thoughput to specific applicatio equiemets. Upsteam CPRI ca be implemeted with data ates of 24.33024, 12.1651, 10.1376, 9.8304, 6.144, 4.9152, 3.072, 2.4576, ad 1.2288 Gbps usig the GTS PMA/FEC Diect PHY Itel FPGA IP.

I CPRI mode, the efeece clock fequecies fo both the tasmitte (TX PLL efeece clock) ad eceive (RX CDR efeece clock) vay based o the selected CPRI ate, with optios of 122.88, 153.6, o 184.32 MHz. The PMA data width ca be cofigued up to 32 bits.