Altera CPRI IP Core - Manual (Page 7)

December 2013 Altera Corporation CPRI MegaCore Function
User Guide
1. About This MegaCore Function
The Altera ® CPRI MegaCore ® function implements the Common Public Radio
Interface (CPRI) specification. CPRI is a high-speed serial interface designed for
network radio equipment controllers (REC) to receive data from and provide data to
remote radio equipment (RE).
1 The information in this user guide, including the latency numbers in “Delay
Measurement and Calibration Features” on page E–1 , is applicable to version 13.1 of
the CPRI IP core.
The CPRI IP core targets high-performance, remote, radio network applications. You
can configure the CPRI IP core as an RE or an REC.
Figure 1–1 shows an example
system implementation with a two-hop daisy chain. Optical links between devices
support high performance.
Figure 1–1. Typical CPRI Application on Altera Devices
CPRI
MegaCore Function
(RE Slave)
FPGA FPGA
CPRI
MegaCore Function
(RE Slave)
CPRI
MegaCore Function
(RE Master)
FPGA
CPRI
MegaCore Function
(REC)
Clock
Module
RF
Base Band Module
Optical Link
Optical Link
CPRI CPRI CPRI
CPRI
RF
Routing Layer
MAP MAP AUX AUX