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>ERASE TIMER
Erase Timer on
Erase Timer off
>CLEAR LOCAL XDS
Clear XDS? No
Clear XDS? Yes
>GPI IN MONITOR
Gpi = 80 02 01 02
OPERATION
Models 8084/8084AD/8085 Closed Caption Encoder Manual
3.3.11 Using the 16 Second Erase Timer
When the Erase Timer is activated, the 8084(AD) will automatically encode
a command to erase captions in the CC1 data stream (primary language
captions) if no caption data has been received for 16 seconds. This will
prevent unwanted caption text from remaining on the viewer's screen
during long periods of uncaptioned material.
ERASE TIMER is used to select whether the erase timer is enabled or not.
Select Erase timer on to enable the Erase Timer.
Select Erase timer off to disable the Erase Timer.
3.3.12 CLEARING XDS PACKETS FROM MEMORY
In the 8084 and 8084AD, local XDS packets are kept in a non-volatile
memory and are restored on power up. XDS packets can only be removed
from memory using the serial port of the encoder, or by using the Clear
Local XDS menu item.
CLEAR LOCAL XDS allows the user to clear the XDS packet memory from
the front panel. Setting this menu item to YES and pressing the
SELECT key will erase the XDS Packet memory. Text articles
will be preserved.
3.3.13 Monitoring the Status of the Parallel Remote Control Inputs
GPI IN MONITOR
is used to monitor the current status of the parallel
remote control inputs. When you press the
display shows something similar to Gpi = 06 02 01 02. The left-
most number is a hexadecimal representation of the bit mapped
parallel input. Bit 0 is the least significant bit, bit 7 is the most
significant bit. (See section 3.5 for a description of the remote
control functions and bit-mappings of the pins).
This display is also used to show the revisions of the factory-
programmed logic devices in the caption encoder. These are
the other three values shown on the display. Chapter 5
describes the significance of these values in detail.
Revision 1.6.6
or
keys, the
Page 3-27
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