IP-CPRI Altera, IP-CPRI Datasheet - Page 108

• 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

6–12
Table 6–26. CPRI_TX_SCR_SEED— Tx Scrambler Seed —Offset: 0x5C
Table 6–27. CPRI_RX_SCR_SEED— Rx Scrambler Support —Offset: 0x60
CPRI MegaCore Function User Guide
RSRV
tx_scr_seed
rx_scr_act_indication [31]
rx_scr_seed
Field
Field
[31]
[30:0]
Bits
[30:0]
Bits
UR0
RW
Access
Access
RO
RO
Reserved.
Transmitter scrambler seed. If the seed has value 0, the
transmission is not scrambled.
Indicates that the incoming hyperframe is scrambled. The
value 1 indicates that the incoming communication is
scrambled, and the value 0 indicates that it is not scrambled.
Received scrambler seed. The receiver descrambles the
incoming CPRI communication based on this seed.
Function
Function
December 2010 Altera Corporation
Chapter 6: Software Interface
CPRI Interface Registers
Default
1’h0
31’h0
Default
1’h0
31’h0