GS2972 Datasheet, PDF (6/125 Pages) Semtech Corporation – 3G/HD/SD-SDI Serializer with Complete SMPTE Audio & Video Support

4.7.17 Five-frame Sequence Detection - SD........................................................................ 57
4.7.18 Frame Sequence Detection - HD/3G ........................................................................ 60
4.7.19 ECC Error Detection and Correction ........................................................................ 61
4.7.20 Audio Control Packet Insertion - SD......................................................................... 61
4.7.21 Audio Control Packet Insertion - HD and 3G......................................................... 62
4.7.22 Audio Data Packet Insertion........................................................................................ 63
4.7.23 Audio Interrupt Control ................................................................................................ 64
4.8 ANC Data Insertion ....................................................................................................................... 65
4.8.1 ANC Insertion Operating Modes .................................................................................. 65
4.8.2 3G ANC Insertion............................................................................................................... 67
4.8.3 HD ANC Insertion.............................................................................................................. 69
4.8.4 SD ANC Insertion............................................................................................................... 70
4.9 Additional Processing Functions .............................................................................................. 71
4.9.1 Video Format Detection .................................................................................................. 71
4.9.2 3G Format Detection ........................................................................................................ 74
4.9.3 ANC Data Blanking ........................................................................................................... 75
4.9.4 ANC Data Checksum Calculation and Insertion..................................................... 75
4.9.5 TRS Generation and Insertion ....................................................................................... 75
4.9.6 HD and 3G Line Number Calculation and Insertion.............................................. 76
4.9.7 Illegal Code Re-Mapping................................................................................................. 76
4.9.8 SMPTE ST 352 Payload Identifier Packet Insertion ................................................ 77
4.9.9 Line Based CRC Generation and Insertion (HD/3G) .............................................. 78
4.9.10 EDH Generation and Insertion ................................................................................... 78
4.9.11 GS2972 3G/HD HANC Space Considerations when Embedding Audio ...... 79
4.9.12 SMPTE ST 372 Conversion ........................................................................................... 79
4.9.13 Processing Feature Disable.......................................................................................... 80
4.10 SMPTE ST 352 Data Extraction ............................................................................................... 81
4.11 Serial Clock PLL ........................................................................................................................... 82
4.11.1 PLL Bandwidth................................................................................................................. 82
4.11.2 Lock Detect........................................................................................................................ 83
4.12 Serial Digital Output .................................................................................................................. 84
4.12.1 Output Signal Interface Levels ................................................................................... 85
4.12.2 Overshoot/Undershoot ................................................................................................. 85
4.12.3 Slew Rate Selection......................................................................................................... 86
4.12.4 Serial Digital Output Mute ........................................................................................... 86
4.13 GSPI Host Interface ..................................................................................................................... 87
4.13.1 Command Word Description ...................................................................................... 88
4.13.2 Data Read or Write Access........................................................................................... 88
4.13.3 GSPI Timing....................................................................................................................... 89
4.14 Host Interface Register Maps .................................................................................................. 91
4.14.1 Video Core Registers...................................................................................................... 91
4.14.2 SD Audio Core................................................................................................................ 100
4.14.3 HD and 3G Audio Core Registers............................................................................. 111
4.15 JTAG ID Codeword ................................................................................................................... 119
4.16 JTAG Test Operation ................................................................................................................ 119
4.17 Device Power-Up ...................................................................................................................... 119
4.18 Device Reset ................................................................................................................................ 119
GS2972 3G/HD/SD-SDI Serializer with Complete
SMPTE Audio & Video Support
Final Data Sheet Rev. 9
GENDOC-047479 September 2013
www.semtech.com
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