IP-CPRI Altera, IP-CPRI Datasheet - Page 16

• 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

1–10
CPRI MegaCore Function User Guide
OpenCore Plus Time-Out Behavior
f
1
OpenCore Plus hardware evaluation supports the following two operation modes:
■
■
All megafunctions in a device time out simultaneously when the most restrictive
evaluation time is reached. If there is more than one megafunction in a design, a
specific megafunction's time-out behavior might be masked by the time-out behavior
of the other megafunctions.
For MegaCore functions, the untethered time-out is 1 hour; the tethered time-out
value is indefinite.
Your design stops working after the hardware evaluation time expires.
The CPRI MegaCore function then behaves as if the reset and cpu_reset signals are
asserted: the CPRI link and the CPU interface reset. The transceivers do not reset,
because the transceiver quad might be shared with other designs, MegaCore
functions, and megafunctions. The CPRI MegaCore function cannot achieve frame
synchronization, and cannot participate in further CPRI communication.
Installation and licensing
Open Core Plus
Untethered—the design runs for a limited time.
Tethered—requires a connection between your board and the host computer. If
tethered mode is supported by all megafunctions in a design, the device can
operate for a longer time or indefinitely.
For Information About
Altera Software Installation and Licensing
AN 320: OpenCore Plus Evaluation of Megafunctions
Chapter 1: About This MegaCore Function
Refer To
December 2010 Altera Corporation
Installation and Licensing