DirecTV DTV-MD0-0058 用户手册
DIRECTV Set-top box information for the installer
DIRECTV Proprietary
November 17, 2005
Version 1.1.a
Page 21 of 49
DTV-MD-0058
Description
Command Initializer
Command ID
Return Data – 0xF0 0xF2 0x1 0x14 0xFF 0xFF 0xF4
Input 0xF0
0xF2
0x114 0xF4
Description Command
acknowledgements
Channel Command
successful
5.6 GetSignalQuality (0x90)
Command Label
GetSignalQuality
Command Byte
0x90
Input Parameter(s)
None
Return Data Stream
[SignalQuality] Signal Quality:
0x00 – 0x64 ( 0x00=FEC unlocked and 0x64=max signal strength)
Return Response
ACK_FCNOK :
Success
NACK_FCNOK : Failure – STB not tuned to a DIRECTV System channel
Return Value
0x0000
: Success
Non-Zero
: Failure – STB not tuned to a DIRECTV System channel
Description
The STB will execute a GetSignalQuality command by providing the signal quality in
the Return Data Stream.
the Return Data Stream.
5.7 GetCurrentTime (0x91)
Command Label
GetCurrentTime
Command Byte
0x91
Input Parameter(s)
None
Return Data Stream
[Year][Month][Date][Hour][Minute][Second][DayOfWeek]
Year:
0x00 – 0xFF (# of years after 1993)
Month: 0x01 – 0x0C
Date:
0x01 – 0x1F
Hour:
0x00 – 0x17
Minute: 0x00 – 0x3B