Vela 2000-0600, Инструкция по установке и эксплуатации

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Chapter 2 — Decoder Command Set Guide 59
DECODER Command (45h)
for use with a subsequent command. The time code is defined in the 32-bits of
data as shown: This command has four different uses:
• Set User Defined starting time code (used in place of GOP header time code):
1. Send “Set Time Code” (command 0004h) with specific starting
time code.
2. Send “LTC Time Code Configuration” (command 0005h) command
with bits 11&10=01b.
• Execute an Inline trick mode (e.g., Pause or Stop) at a specific time code:
1. Send “Set Time Code” (command 0004h) with specific time code.
2. Send decoder command (such as Stop or Pause) with fields “Inline” =
1 and “Inline Mode” = 011b.
0005 LTC Timecode Configuration: This command configures the LTC output.
0008 Set Audio Gain: Each audio output has an adjustable gain control from
0dB to -128dB. The host must pass a gain value in dB. The parameter passed to
the firmware is the gain in dB times 16, giving a resolution of 1/16 dB. The host
Command Bits Function Name Comments
Bits 8 & 9 Reserved
Bits 11–10 Output Time
Code Source 00b = Use GOP header SMPTE time code (default)
01b = Use user-defined starting time code. See
command 0004h, “Set Time Code.”
10b, 11b = Reserved
Bits 15–12 Reserved Reserved
Table 2-10.Time Code Command Description