Altera Serial Digital Interface (SDI) MegaCore Function Manuel d'utilisateur télécharger pdf (Page 122)

4–34 Chapter 4: SDI Audio IP Cores

Design Example

Serial Digital Interface (SDI) MegaCore Function February 2013 Altera Corporation

User Guide

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User Guide 1
Contents 3
Chapter 4. SDI Audio IP Cores 4
Appendix A. Constraints 5
Appendix B. Clocking 5
Features 7
Release Information 8
Device Family Support 8
General Description 9
Notes to Table 1–5: 10
OpenCore Plus Evaluation 11
Resource Utilization 12
2. Getting Started 15
Design Flow 16
SDI Walkthrough 17
Parameterizing 19
Setting Up Simulation 20
Generating Files 20
- SD 270 Mbps 22
- HD 1.485 Gbps 22
- 3G 2.97 Gbps 22
Simulating the Design 23
Specifying Constraints 25
Multiple Channels 26
Compiling the Design 28
Programming a Device 28
Setting Up Licensing 29
3. Functional Description 31
Block Description 32
HD-SDI LN Insertion 34
Scrambling and NRZI Coding 35
Transceiver Clock 35
Receiver 36
Word Alignment 38
Video Timing Flags Extraction 39
RP168 Switching Compliance 39
HD-SDI LN Extraction 40
HD-SDI CRC Checking 40
Accessing Transceiver 40
Transmitter 42
Transmitter Clocks 42
Receiver Clocks 43
Notes to Table 3–5: 44
Notes to Figure 3–8: 44
Figure 3–9. Receiver Clocks 46
rxdata 47
Note to Table 3–7: 50
Notes to Figure 3–11: 51
Figure 3–12. Receiver Clocks 53
New TRS reasserts 55
Stratix IV GX 57
Note to Table 3–10: 58
Note to Table 3–11: 58
Notes to Figure 3–18: 60
Note to Figure 3–19: 61
User Logic 62
Encrypted SDI IP Core 62
Cyclone IV GX 63
Notes to Table 3–12: 70
Note to Table 3–13: 70
Note to Table 3–14: 71
Note to Figure 3–30: 77
Notes to Figure 3–33: 78
signal in 82
Table 3–18 on page 3–50 82
Notes to Figure 3–40: 83
Notes to Table 3–19: 85
MegaCore Verification 87
4. SDI Audio IP Cores 89
Functional Description 90
Note to Table 4–4: 93
Note to Table 4–5: 94
MegaCore function 100
Register Maps 103
Parameters 105
AES Format 109
Avalon-ST Audio Interface 109
Note to Figure 4–6: 110
Instantiating the IP Cores 111
Simulating the Testbench 112
Design Example 113
Components 114
Hardware Setup 116
D6 D7 D8 D9 D10 D11 D12 D13 118
A. Constraints 123
Notes to Figure A–1: 124
(gxb_rxclk 125
Specify Clock Characteristics 126
Set Multicycle Paths 127
337.5-MHz Zero-degree Clocks 128
Minimize Timing Skew 129
Non Cyclone Devices 130
Cyclone Devices Only 131
A–10 Appendix A: Constraints 132
B. Clocking 133
B–2 Appendix B: Clocking 134
C. Receive and Retransmit 135
Loopback FIFO Buffer 136
Additional Information 137
Info–2 Additional Information 138
Document Revision History 138
How to Contact Altera 139
Typographic Conventions 139
Info–4 Additional Information 140

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