Contemporary Research
15
ICC1-IRX
RS-232 Commands
Ts & Qs
The ICC1-IRX responds to Q-series tuning commands as well
Channel Up
TU
“$A5,<dh>,<dl>,2,’TU’ ” (6 bytes) –
Tunes to next channel up in Tune Ring
Channel Dwn
TD
“$A5,<dh>,<dl>,2,’TD’ ” (6 bytes) –
Tunes to next channel down in Tune Ring
TU and TD control analog channels stored in the TR command
–
designed for legacy Smart
TV installs, not contemporary HDTV applications
T Channel Prev
TP
“$A5,<dh>,<dl>,2,’TP’ ” (6 bytes) –
Tunes to previous channel in Tune Ring
Force Channel
TC
“$A5,<dh>,<dl>,3,’TC’, <channel>” (7 bytes) –
Tunes to a specific channel
Select Channel
TT
“$A5,<dh>,<dl>,2,’QT’,<channel>” (7 bytes) –
Tunes channel if included in TR
Tune Ring
TR
“$A5,<dh>,<dl>,<ncb>,’TR’, [<chan 1>, <chan N>]” (variable bytes)
This command stores a Tune Ring,
Analog channels only
, a series of preset channels
accessed by channel up/down commands.
Ex1:
“$A5,<dh>,<dl>,6,’TR’, 5,4,8,11” sets ring to channels 5, 4, 8 and 11
Tip:
The ring follows the stored order, channels do not have to be in ascending
order
Ex2:
“$A5,<dh>,<dl>,8,’TR’, $82,5,$87,11” sets channels 2
-5 and 7-11. You can
specify a range using MSB bit for the first channel; the next byte is the last.
Control Lock
LM
“$A5,<dh>,<dl>,3,'LM',<control>” (7 bytes)
Locks power operation
–
only functional with display with power current sensor. When the
control is locked, the display is locked to the power state of the ICC1-IRX. For example, if
the ICC1-IRX
power state is off, the display can’t be turned on from the IR remote or TV
front panel. The controller will sense the change from the power sensor and turn the set
off.
0 = Unlock, 128 = Lock
Tuning Style
H1=
“$A5,<dh>,<dl>,3,’H1’,<style>”
(7 bytes)
1 = 5-digit CableCard style tuning (1-9999)
2 = Virtual HD Major-Minor tuning (tunes to virtual channel ID in display)
3 = Physical HD Major-Minor tuning (physical channel, minor digital)
TC Response
H2=
“$A5,<dh>,<dl>,3,’H2’,<response>” (7 b
ytes)
This pre-sets how the ICC1-IRX will respond to TC tuning commands.
0= Ignore, use current settings
1= Analog Only (XX-0)
2= Digital (XX-1)
Tune HD
TH
Ex:
“$A5,<dh>,<dl>,5,’TH’,<H1>,<Major>,<Minor>” (9 bytes) –
Digital Tuning
Normally, the H1 parameter is 0, allowing the ICC1-232 to use the current H1 tuning
format, but it could be used to force a different tuning option. When the display is set to
the H1=1 mode, 1-part digital channel, the first byte is (x*256), and the last byte is the
value you add to state the channel number. In H1=2 or 3 modes, the bytes represent the
Major and Minor channel numbers.
This command is designed for compatibility with other ICC controllers. In reality, H1 modes
2 and 3 are the same for IR control.
“$A5,1,4,5,’TH’,1,2,3” Device 260, channel 515
“$A5,1,4,5,’TH’,2,2,3” Device 260, virtual channel 2
-3
“$A5,1,4,5,’TH’,3,2,3” Device 260, physical channel 2, minor 3