GS2971A Datasheet, PDF (5/152 Pages) Gennum Corporation – Integrated audio clock generator

4.13.1 2K Support......................................................................................................................... 63
4.14 Data Format Detection & Indication ..................................................................................... 63
4.15 EDH Detection .............................................................................................................................. 64
4.15.1 EDH Packet Detection ................................................................................................... 64
4.15.2 EDH Flag Detection ........................................................................................................ 65
4.16 Video Signal Error Detection & Indication ......................................................................... 65
4.16.1 TRS Error Detection........................................................................................................ 67
4.16.2 Line Based CRC Error Detection ................................................................................ 67
4.16.3 EDH CRC Error Detection............................................................................................. 68
4.16.4 HD & 3G Line Number Error Detection ................................................................... 68
4.17 Ancillary Data Detection & Indication ................................................................................. 68
4.17.1 Programmable Ancillary Data Detection................................................................ 70
4.17.2 SMPTE 352M Payload Identifier ................................................................................ 71
4.17.3 Ancillary Data Checksum Error ................................................................................. 72
4.17.4 Video Standard Error..................................................................................................... 73
4.18 Signal Processing ......................................................................................................................... 73
4.18.1 TRS Correction & Insertion........................................................................................... 74
4.18.2 Line Based CRC Correction & Insertion ................................................................... 75
4.18.3 Line Number Error Correction & Insertion ............................................................. 75
4.18.4 ANC Data Checksum Error Correction & Insertion ............................................. 75
4.18.5 EDH CRC Correction & Insertion ............................................................................... 75
4.18.6 Illegal Word Re-mapping ............................................................................................. 76
4.18.7 TRS and Ancillary Data Preamble Remapping...................................................... 76
4.18.8 Ancillary Data Extraction............................................................................................. 76
4.18.9 Level B to Level A Conversion .................................................................................... 80
4.19 Audio De-embedder ................................................................................................................... 81
4.19.1 Serial Audio Data I/O Signals...................................................................................... 81
4.19.2 Serial Audio Data Format Support ............................................................................ 83
4.19.3 Audio Processing............................................................................................................. 87
4.19.4 Error Reporting ................................................................................................................ 94
4.20 GSPI - HOST Interface ................................................................................................................ 94
4.20.1 Command Word Description ...................................................................................... 95
4.20.2 Data Read or Write Access........................................................................................... 96
4.20.3 GSPI Timing....................................................................................................................... 97
4.21 Host Interface Register Maps .................................................................................................. 99
4.21.1 Video Core Registers...................................................................................................... 99
4.21.2 SD Audio Core Registers............................................................................................. 113
4.21.3 HD and 3G Audio Core Registers............................................................................. 128
4.22 JTAG Test Operation ................................................................................................................ 143
4.23 Device Power-up ....................................................................................................................... 145
4.24 Device Reset ................................................................................................................................ 145
4.25 Standby Mode ............................................................................................................................ 145
5. Application Reference Design ............................................................................................................. 146
5.1 High Gain Adaptive Cable Equalizers .................................................................................. 146
5.2 PCB Layout ..................................................................................................................................... 146
5.3 Typical Application Circuit ......................................................................................................147
6. References & Relevant Standards ....................................................................................................... 148
GS2971A 3Gb/s, HD, SD SDI Receiver
Data Sheet
54311 - 2
September 2012
5 of 152