Altera CPRI v6.0 MegaCore Function User Manual
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4.952 Gbps
Line Rate:
Sequence number on AUX interface
6.144 Gbps
Line Rate:
Sequence number on AUX interface
9.8304 Gbps
Line Rate:
Sequence number on AUX interface
10.1376 Gbps
Line Rate:
Sequence number on AUX interface
Note:
(1) Light blue table cells indicate control word bytes. Yellow table cells indicate real-time vendor specific bytes. White table cells indicate data word bytes.
The CPRI IP core passes the incoming AUX data through to the CPRI link unmodified. You must ensure
that the incoming AUX data bits already include any CRC values expected by the application at the other
end of the CPRI link.
Figure 3-13: Data Sample Order on aux_tx_data and aux_rx_data Buses
Illustrates how CPRI frame data is ordered in each 32-bit word.
31
24 23
16 15
8 7
0
I[3]
Q[3]
I[2]
Q[2]
I[1]
Q[1]
I[0]
Q[0]
I[7]
Q[7]
I[6]
Q[6]
I[5]
Q[5]
I[4]
Q[4]
I[1
1]
Q[
11]
I[10]
Q[10]
I[9]
Q[9]
I[8]
Q[8]
I[15]
Q[15]
I[14]
Q[14]
I[13]
Q[13]
I[12]
Q[12]
3-20
Direct Interface CPRI Frame Data Format
UG-01156
2014.08.18
Altera Corporation
Functional Description