Extron Electronics DVS 204 Series - Manual (Page 35)

3-3 DVS 204 • Serial Communication
Using the command/response tables
The command/response tables on the next page list valid command ASCII codes,
the scaler’s responses to the host, and a description of the command’s function
or the results of executing the command. Upper and lower case characters may be
used interchangeably in the command field.
The ASCII to HEX conversion table at left is for use with the
command/response tables.
ASCII to Hex conversion table
ASCII to HEX Conversion Table
•
X12 = Detected input signal standard (0 through 4)
0 = none
1 = NTSC 3.58
2 = PAL
3 = NTSC 4.43
4 = SECAM
–
= not applicable (occurs when the input is
set for RGB, YUV, or progressive YUV)
X13 = Detail level (0 through 63)
X14 = Adjustment range (0 through 127)
X16 = Executive mode status (0 through 2)
0 = disabled (executive mode off, normal
mode on)
1 = enabled, image adjustments are locked
X17 = Blanking adjustment range (0 through 127 lines)
X19
= Input configuration preset (1 through 3)
X20 = Scaler refresh rate
1 = 50 Hz
2 = 56 Hz (1280x768 only)
3 = 60 Hz
4 = 75 Hz
5 = AFL* (50 Hz for PAL or 59.94 Hz for
NTSC)
6 = True rate (72 Hz for NTSC or 100 Hz for
PAL)
*NOTE: Lock or AFL is Accu-RATE Frame Lock ™
The command/response tables use symbols (defined below) to represent variables.
Symbol definitions
= CR/LF (carriage return/line feed) (hex 0D 0A)
• = Space
Esc = Escape key
X1 = Specific input number (0 through 4)
0 = no input
1 = input 1, 2 = input 2, and so forth
X2 = 0 = off, 1 = on
X4 = Video signal type (1 through 7)
1 = composite video
2 = YC
3 = YUV
4 = RGB
5 = RGBS
6 = RGBcvS
7 = SDI (serial digital interface)
X5 = Input (1 to 4)
X8 = Controller firmware version (listed to
two decimal places e.g.: x.xx)
X10 = Picture adjustment range (0 through 255)
X11 = Scaler resolution
1 = 640x480
2 = 800x600
3 = 848x480
4 = 852x480
5 = 1024x768
6 = 1280x768
7 = 1280x1024
8 = 1360x765
9 = 1365x1024
10 = 480p
11 = 720p
12 = 1080p
13 = 1080i
14 = 1400x1050
15 = 576p