COBHAM Messenger Portable Decoder, Руководство пользователя, Страница: 18 / 29

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AsiInput 0xFC None 0xFC DATA[0] Read the TS status of MPD ASI input. In
acknowledge frame,
1)
DATA[0].0: 1, with TS input; 0,
without TS.
2) DATA[0].1: 1, TS abnormal; 0, TS
normal.
3) DATA[0].2: 1, TS lock; 0, TS
unlock.
GetID 0xFB None 0xFB None Get the ID number of the currently
connected MPD
的
ID.
1) In command frame, ID=0x0000;
2) In acknowledge frame, ID=ID number
of the currently connected MPD.
SetID 0xFA DATC[0..1] 0xFC DATA[0..1] Set new ID number for the currently
connected MPD.
1) The ID in command frame is the old ID
or is 0x0000;
2) DATC[0..1]=NewID,e.g. when
DATC[0]=0x12, DATC[0]=0x34, it
means NewID=0x1234;
3) The ID in acknowledge frame is the old
ID number;
4) DATA[0..1]=NewID, e.g. when
DATA[0]=0x12, DATC[0]=0x34, it
means NewID=0x1234;
5) When the SetID command is
successfully executed, the monitoring
program should use NewID or 0x0000
as the ID number to communicate with
the corresponding MPD.
Monitor Operation
Monitor Operation
Note: DATC[X] represents Command Data, DATA[X] represents Acknowledge Data
Monitor
Operation
Command Acknowledge Explanation
CMD DATA ACK DATA
TvMode 0xEF None 0xEF DATA[0] Read the current video output mode.
1) DATA[0]=0x00 NTSC
2) DATA[0]=0x01 PAL
3) DATA[0]=0x02 SECAM
VideoSpec 0xEE None 0xEE DATA[0] Read the current video syntax subset and
level.
1) DATA[0]=0x00 Main Profile @ Main
Level
2) DATA[0]=0x01 4:2:2 Profile @ Main
Level