Chapter 2 — Decoder Command Set Guide
75
DECODER Command (45h)
Command/Status Page). The frame count is read back in bytes 8-11 (Current
Decoder Status).
0036 Set PAL Buffer Mode:
Command ignored by firmware.
003A Set Output Discretes:
Each decoder channel has one output discrete,
GPOUT1, for the user's application. This command provides access to the output
discretes.
The decoder has an additional output discrete, GPOUT2, which is used during
two decoder A/B switching and fading.
003D Set Transport Program ID (PID):
This command is used to select differ-
ent audio and video Program IDs (PID) within a Transport Stream. This com-
mand sets the transport PSI table values so different audio streams can be
selected from a Single Program Transport stream with multiple audio. The com-
mand also allows selecting a single program from a Multi-Program Transport
Stream.
• PID type is specified in the upper eight bits of the command.
• PID value is specified in the 32-bit data field,
• PID is 16 bits for Program Number, and 13 bits for transport PID.
Command Bits
Function Name
Description
Bit 8
GPOUT1
0 = Discrete off (open)
1 = Discrete on (pulled to ground)
Bits 9–15
Reserved
PID Type
Operation
0
Reserved
1
Set Program Number
2
Reserved
3
Reserved
4
Reserved
5
Set Video PID
6
Set Primary Channel Audio PID
Summary of Contents for 2000-0600
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