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GS9092A Datasheet(PDF) 40 Page - Semtech Corporation |
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GS9092A Datasheet(HTML) 40 Page - Semtech Corporation |
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40 / 61 page  GS9092A GenLINX® III 270Mb/s Serializer for SDI and DVB-ASI Final Data Sheet 34715 - 5 February 2013 40 of 61 3.7.3.2 Illegal Code Remapping If the ILLEGAL_REMAP bit of the IOPROC_DISABLE register is set LOW, the GS9092A will remap all codes within the active picture between the values of 3FCh and 3FFh to 3FBh. All codes within the active picture area between the values of 000h and 003h will be remapped to 004h. In addition, 8-bit TRS and ancillary data preambles will be remapped to 10-bit values if this feature is enabled. Note: The EDH block always remaps EDH packet headers regardless of the ILLEGAL_REMAP setting. 3.7.3.3 EDH Generation and Insertion If the EDH_CRC_INS bit of the IOPROC_DISABLE register is set LOW, the GS9092A may be configured to generate and insert complete EDH packets into the data stream, or update the CRC bits of existing EDH packets. Generation and Insertion of New EDH Packets When EDH_CRC_UPDATE is set LOW (bit 11 of address 04h), the GS9092A will generate all of the required EDH packet data including all ancillary data preambles (DID, DBN, DC), reserved code words and checksum. Calculation of both full field (FF) and active picture (AP) CRC's will be carried out by the device. VIDEO_FORMAT_A Address: 0Fh 15-8 SMPTE 352M Byte 2 SMPTE 352M Byte 2 information must be programmed in this register when 352M_INS is LOW and 352M_CALC is HIGH. R/W 0 7-0 SMPTE 352M Byte 1 SMPTE 352M Byte 1 information must be programmed in this register when 352M_INS is LOW and 352M_CALC is HIGH. R/W 0 Table 3-5: Host Interface Description for SMPTE 352M Payload Identifier Registers (Continued) Register Name Bit Name Description R/W Default Table 3-6: Host Interface Description for SMPTE 352M Packet Line Number Insertion Registers Register Name Bit Name Description R/W Default 352M_LINE_1 Address: 26h 15-11 – Not Used –– 10-0 352M_LINE_1 [10:0] Line number where SMPTE352M packet is inserted in field 1. If the 352M_CALC bit is HIGH, and both 352M_LINE1 and 352M_LINE2 are set to zero, then no packets will be inserted. R/W 0 352M_LINE_2 Address: 27h 15-11 – Not Used –– 10-0 352M_LINE_2 [10:0] Line number where SMPTE352M packet is inserted in field 2. If the 352M_CALC bit is HIGH, and both 352M_LINE1 and 352M_LINE2 are set to zero, then no packets will be inserted. R/W 0 |
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