Altera CPRI v6.0 MegaCore Function User Manual

Page 50

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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

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