SRG-2200 User Guide (v6.0) Date in the User Bits of Timecode • 89
Date in the User Bits of Timecode
This chapter provide an overview of how the SRG-2200 inserts and reads the user bits in time code to decode date
and time zone information.
The SRG-2200 supports two methods of date information in the user bits of LTC and VITC:
• SMPTE 309M-1999 using YYMMDD format, with or without encoded time zone information
• EBU I29-1995/ITU-R BR.1353 Appendix 2 or commonly known in the industry as ITU/Legacy/BBC format
SMPTE S309 (YYMMDD Format) VITC Bit Number ITU/Legacy/BBC
BG1
Day units
6
Reserved - set to 0
7
8
9
BG2
10s of Day units
16
Day units
17
18
19
BG3
Month units
26
Month units
27
28
29
BG4
10s of Month units
36 Day10s of units
37 Day 10s of units
38 Month 10s of units
39 Reserved - set to 0
BG5
Year Units
46
Reserved - set to 0
47
48
49
BG6
Year 10s of units
56
Year units
57
58
59
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