Table of Contents
Advertisement
SERIAL PROTOCOL
Models 8084/8084AD/8085 Closed Caption Encoder Manual
Command:
^F^F<cr>
Default:
none
4.3.3
Set Output Line
The normal line for caption information is line 21 in NTSC and line 22 in
PAL. This command allows the 8084(AD) to output caption information on
different line numbers. This command also changes the line number used
by the decoder.
Command:
^AE<sp>Lln<cr>
Default:
^AE<sp>L21<cr>
^AE<sp>L22<cr>
The parameter ln specifies the line number that caption information will be
output on. The permitted values of parameter ln are 11 to 25.
Examples:
^AE<cr>
^AE<sp>L20<cr>
^AE<sp>?<cr>
4.3.4
Monitoring the Line 21 Data on the Serial Port
This command allows the 8084(AD) to extract line 21 information from the
input or output video and send it out the serial port. Enter a ^G to end
monitor mode.
Command:
^A5<sp>fx<sp>o<cr>
The parameter fx specifies the field that data will be extracted from
The parameter o specifies that the output data will be monitored.
Example:
^A5<sp>F1<cr>
^A5<sp>F2<sp>O<cr>
4.3.5
Controlling the Caption Decoder
This command allows the unit to display line 21 information on the built-in
caption decoder.
Command:
^AM<sp>dc<cr>
or
^AM<sp>OFF<cr>
The parameter dc specifies the data channel that will be decoded and
displayed. In addition to the dc values shown in section 4.2.2 the following
additional values are supported only for this command.
Revision 1.6.6
for NTSC systems
for PAL systems
Reset to default
Set for line 20
Show current line
Monitor Field 1 Input
Monitor Field 2 Output
Decode a specific channel
Turn Decoder off
Page 4-8
Advertisement
Table of Contents
