6 getsignalquality (0x90), 7 getcurrenttime (0x91) – DirecTV DTV-MD0-0058 User Manual

Page 21

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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.

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

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