ANALOG WAY
PAGE 22
SMS100 - ED 07/01
9) REMOTE CONTROL RS-232 (continued)
9-2) HOST / SMART SCALER™ COMMUNICATION (continued)
•
ERROR RESPONSES :
When the SMART SCALER™ receives from the host an invalid command or value, it returns an error response:
E10
↵
Invalid command (See "COMMAND" column).
E13
↵
Invalid value (See "VALUE" column).
•
COMMANDS DESCRIPTION
Values sent or received are in decimal. Depending on the command letter, the value can be used as a linear control (ex :
255W to set the horizontal size to the maximum) or as a set of bits (ex : P command with multiple controls). In this case,
the value must be converted in binary base to understand every bit action.
EXAMPLE Host receives message CSTA3 (P command)
Decimal value 3 = Binary value 011
3 = (4 x 0) + (2 x 1) + (1 x 1)
bit 0 = 1 means Sync. detected.
bit 1 = 1 means Comp. Sync. detected.
bit 2 = 0 means non interlaced format detected.
c
INPUT COMMANDS :
•
I command
is used to select an input.
DECIMAL VALUE
INPUT # SELECTION
RESPONSE
1
COMPUTER
ICHAN1
3
C.VIDEO 1
ICHAN3
4
C.VIDEO 2
ICHAN4
5
S.VIDEO 1
ICHAN5
6
S.VIDEO 2
ICHAN6
7
RGB / YUV
ICHAN7
•
r command
is used to select the video type of the RGB/YUV input.
DECIMAL VALUE
SELECTION
RESPONSE
0
YUV
IRGB0
1
RGB/S (TTL)
IRGB1
2
RGsB (SOG)
IRGB2
3
RGB/S (75
Ω
)
IRGB3
•
w, x, y, z commands
are used to select the video standard of the C.VIDEO 1, C.VIDEO 2, S.VIDEO 1
and S.VIDEO 2 input.
DECIMAL VALUE
SELECTION
RESPONSE
0
AUTOMATIC
ISTD__0
1
NTSC (3.58 / 60Hz)
ISTD__1
2
PAL (4.43 / 50Hz)
ISTD__2
3
SECAM
ISTD__3
4
BLACK & WHITE
ISTD__4
