IP-CPRI Altera, IP-CPRI Datasheet - Page 125

• Manufacturer Part Number: IP-CPRI
• Description: IP CORE - Common Public Radio Interface (CPRI)
• Manufacturer: Altera

Specifications of IP-CPRI

• Software Application: IP CORE, Interface And Protocols, HIGH SPEED
• Supported Families: Arria II GX, Cyclone IV GX, HardCopy IV, Stratix IV
• Core Architecture: FPGA
• Core Sub-architecture: Arria, Cyclone, Stratix
• Rohs Compliant: NA
• Lead Free Status / RoHS Status: na
• Lead Free Status / RoHS Status: na

Introduction
Table 7–1. Additional Functions Demonstrated by Individual Testbenches
December 2010 Altera Corporation
Testbench
tb_altera_cpri.vhd
tb_altera_cpri_mii.vhd
tb_altera_cpri_mii_noiq.vhd
tb_altera_cpri_autorate.vhd
tb_altera_cpri_c4gx_autorate.vhd
The CPRI MegaCore function includes five demonstration testbenches for your use.
The testbenches provide examples of how to use the Avalon-MM and Avalon-ST
interfaces to generate and process CPRI transactions using the MII, MAP, and AUX
interfaces and how to perform auto-rate negotiation.
All four demonstration testbenches demonstrate the following functions:
■
■
■
In addition, the individual testbenches demonstrate the functions shown in
Each testbench consists of a CPRI MegaCore function and a testbench that initializes
the CPRI MegaCore function and sends the generated data to the CPRI MegaCore
function interfaces listed in
function’s high-speed transceiver output is looped back to its high-speed transceiver
input. The testbench module provides clocking, reset, and initialization control, and
processes to write to and read from the MegaCore function’s interfaces. The
initialization process requires that the testbench module write to and read from the
CPRI MegaCore function registers through its CPU interface.
Writing to the registers
Frame synchronization process
Transmission and reception of CPRI link data
Transmission and Reception of Data on Interface
Antenna-Carrier
Table
v
v
—
—
—
7–1. In the testbenches, the CPRI MegaCore
MII
—
v
v
—
—
AUX
v
v
v
—
—
CPRI MegaCore Function User Guide
7. Testbenches
Negotiation of CPRI
Auto-Rate
Line Rate
—
—
—
v
v
Table
7–1.