Getcurrentchannel (0X87) - DirecTV D10 Installation Manual

DIRECTV Set-Top Box Information for the Installer
Return Data Stream
Return Response
Return Value
Description

5.5 GetCurrentChannel (0x87)

Command Label
Command Byte
Input Parameter(s)
Return Data Stream
Return Response
Return Value
Description
Example: Find out what channel a single tuner STB is tuned to (STB is tuned to channel 276
which in hexadecimal notation is 0x114).
Controller -> STB: FA
Controller -> STB: 87
DIRECTV, Inc.
Version 2.2
[Version Major] [Version Minor] [Reserved1] [Reserved2]
*******************************************************************
Version Major: 0x00 – 0xFF;
Version Minor: 0x00 – 0xFF
Reserved1: 0x00
Reserved2: 0x00
ACK_FCNOK : Always Success
0x0000 : Always Success
This command displays the version of the Data Port specification the STB software
was coded to. For example: Ver 1.4 will return a [Version Major]: 0x01 and [Version
Minor]: 0x04.
Note: STBs supported by this document will return a version number of 1.4 or higher.
GetCurrentChannel
0x87
None
[MajorChnHI] [MajorChnLO] [MinorChnHI] [MinorChnLO]
*******************************************************************
MajorChnHI : 0x00 – 0xFF
MajorChnLO : 0x00 – 0xFF
MinorChnHI : 0x00 – 0xFF
MinorChnLO : 0x00 – 0xFF
ACK_FCNOK : Success
NACK_FCNOK : Failure – STB not tuned to a DIRECTV System channel
0x0000 : Success
Non-Zero : Failure – STB not tuned to a DIRECTV System channel
The STB executes this command by providing the major and minor channel number
(i.e., for the DIRECTV system channel the STB is tuned to) in the Return Data
Stream.
Page 19 of 42
(Command Prefix)
(Command ID)
March 5, 2008
DTV-MD-0058