IP-CPRI Altera, IP-CPRI Datasheet - Page 114
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IP-CPRI
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
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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
Chapter 6: Software Interface
May 2011 Altera Corporation
CPRI Interface Registers
Default
1’h0
31’h0
Default
1’h0
31’h0
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