Altera CPRI v6.0 MegaCore Function Manual do Utilizador Página 109

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Bits Field Name Type Value on
Reset
Description
20:16 rx_
bitslip_
out
RO 5'b0 Number of bits of delay (bitslip) detected at the receiver word-
aligner. Value can change at frame synchronization, when the
transceiver is resetting. Any K28.5 symbol position change that
occurs when word alignment is activated changes the bitslip
value.
15:6 Reserved UR0 10'b0
5 tx_
bitslip_
en
RW 1'b0 Enable manual tx_bitslip_in updates.
4:0 tx_
bitslip_
in
RW 5'b0 Number of bits of delay (bitslip) the CPRI v6.0 IP core adds at
the CPRI Tx link.
The CPRI line bit rate determines the following maximum
values for this field:
Maximum value for IP core variations with CPRI line bit
rate 0.6144 Gbps: 9 bits.
Maximum value for IP core variations with CPRI line bit
rate greater than 0.6144 Gbps: 19 bits.
5-20
XCVR_BITSLIP Register
UG-01156
2015.02.16
Altera Corporation
CPRI v6.0 IP Core Registers
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