DirecTV DTV-MD0-0058 用户手册

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页码 49
   
DIRECTV Set-top box information for the installer
 
DIRECTV Proprietary 
 
November 17, 2005 
Version 1.1.a 
Page 13 of 49 
DTV-MD-0058 
4  Data Port Commands 
4.1  Summary of Useful Data Port Commands 
Command 
Code 
Command Label 
Description 
0x81 Standby
1
 
Put STB in Standby 
0x82 
Active 
Turn STB on 
0x83 
GetPrimaryStatus 
Status information on current channel 
0x87 
GetCurrentChannel 
Get the major and minor numbers for the tuned 
channel 
0x90 
GetSignalQuality 
Signal level for the tuned channel 
0x91 
GetCurrentTime 
Current time in UTC 
0x92 
GetUserCommand 
Get the remote or front panel command input by 
the user 
0x93 
EnableUserEntry 
Allows direct control of the STB by the remote or 
front panel buttons 
0x94 
DisableUserEntry 
Disables direct control of the STB by the remote 
or front panel buttons 
0x95 
GetReturnValue 
Returns the last Return Value issued by a data port 
command 
0x96 
Reboot 
Commands a reboot 
0xA5 
SendUserCommand 
Send remote control commands through the data 
port 
0xA6 
OpenUserChannel 
Tune to a channel by inputting a channel number 
 
 
4.2  Default Data Rate and Format 
The majority of STBs have a default data rate of 9600.  The data format is 1 start bit, 8 data bits, 
no parity, 1 stop bit, and no handshaking. 
                                                 
1
 This command holds its value after a warm start.  Other commands are terminated.