TView Pro AV
User's Manual Rev 2.01
27
For example, the following byte sequences perform the indicated functions:
Output Set to PAL
14
0
13
NTSC/PAL register
0, therefore PAL
<CR>
Flicker Filter Turned On
7
1
13
Flicker Filter register
1, therefore On
<CR>
Decrement Horizontal Size
2
0
13
Horizontal Size
Decrement by 1
<CR>
Delay time between each transmitted character of a command does not matter. Each command will not be completed
until the Carriage Return is received. If incorrect register numbers are given at the start of any command (i. e. byte with a
register value greater than 23), the TView Pro AV will ignore that byte.
Special caution should be used when using the Save Settings Command (Register 23). Excessive repeated use of this
command (i. e. inside an endless loop) will damage the TView Pro AV's Non-Volatile memory.
3)
The De-Activation Command is given. When a TView Pro AV is used in an RS-422 system with several other
TView Pro AVs, it will be necessary to De-Activate the currently selected TView Pro AV to issue commands to another
TView Pro AV in the system. If you are using a single TView Pro AV, it will not be necessary to De-Activate the TView
Pro AV.
The De-Activation Command consists of the character string: RSOFFx (where x is the address of the TView Pro AV).
The De-Activation Command (and all other commands) must be followed by a Carriage Return (ASCII character value of
13 decimal) to be accepted.
The following byte string (using decimal values for ASCII characters) indicates a valid De-Activation Command for a
TView Pro AV previously programmed to be address 3:
82
83
79
70
70
03
13
R
S
O
F
F
3
<CR>
If the TView Pro AV receives any unexpected input before the reception of the De-Activation Command, it will ignore it.
If it receives an unexpected byte during the transmission of the De-Activation Command, the De-Activation Command
must be re-transmitted (the De-Activation sequence is reset).
