Altera CPRI v6.0 MegaCore Function - Manual (Page 96)

Bits Field Name Type Value on
Reset
Description
9 prot_ver_
auto
RW 1'b1 Enables auto negotiation of protocol version.
If you turn on Enable L1 inband protocol negotiator, this field
is a RW register field with the default value of 1. Otherwise, this
field is a RO register field with the default value of 0.
RO 1'b0
8
rx_prot_
ver_
filter
RW 1'b1 Enable filtering or protection of the Z.2.0 value across five
consecutive hyperframes.
If you turn on Enable L1 inband protocol negotiator, this field
is a RW register field with the default value of 1. Otherwise, this
field is a RO register field with the default value of 0.
RO 1'b0
7:0
tx_prot_
ver
RW 8'b01 Transmit protocol version to be mapped to Z.2.0 to indicate
whether or not the current hyperframe transmission is
scrambled. The value 1 indicates it is not scrambled and the
value 2 indicates it is scrambled.
If the
prot_ver_auto
field has the value of 1, the IP core
automatically updates the
tx_prot_ver
field.
TX_SCR Register
Table 5-8: CPRI v6.0 IP Core TX_SCR Register at Offset 0x14
Bits Field Name Type Value on
Reset
Description
31 Reserved UR0 1'b0
30:0
tx_scr_
seed
RW 31'b0 Transmitter scrambler seed. If the seed has value 0, the
transmission is not scrambled.
RX_SCR Register
UG-01156
2015.02.16
TX_SCR Register 5-7
CPRI v6.0 IP Core Registers Altera Corporation
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