Vela 2000-0422 Installation And User Manual - Command Code Description
Chapter 2 — Overview and Operation
69
DECODER Command (45h)
Command Code Description
0000 Soft Reset, Audio/Video: This command performs a reset of the audio and
video circuits and forces the screen to black or selected background color.
0004 Set Time Code: This command passes a SMPTE time code to the decoder
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/VITC Time Code Configuration” (command 0005h)
command with bits 11&10=01b.
0037
Second Channel Audio Mode
X
003A
Set Output Discretes
X
X
X
003B
Video Switch
X
X
X
003C
Set Audio Channel Select/Audio Fade
X
X
X
003D
Set Transport Program ID (PID)
X
X
003E
Set Freeze Field/Frame
X
X
0046
Genlock to SDI Timing Adjustment
X
0047
Video/Audio Fade
X
X
X
Command
Code
Function Name (Continued)
Before
Play
Immed
Inline
Table 2-10.Time Code Command Description