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Character generator commands – Contemporary Research 232-STS User Manual

Page 11

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Contemporary Research

11

232-STS Stereo S-Video TV Tuner

Character Generator Commands

The optional character generator supports an on-screen display that is 32 columns (characters) across by 13

rows (lines) down. An imaginary cursor represents the current screen write position. Writing text automatically

increments the cursor to the next character space. The character text is always white.

TM=

Sets on-screen channel label mode.

0=None

1=Alpha only

2=Numeric only

3=Both alpha and numeric labels

Channel labels are displayed overlaying the video in the top-left corner

of the screen for about 10 seconds after each channel change.

Example:

'>TM=2' Sets channel mode to display channel number only.

TN=,

Sets the alpha label for the specified channel. Alpha labels may be up

to 8 characters and are displayed on screen when a channel changes, if

alpha labels are enabled by the 'TM' command.

Example:

'>TN=8,ABC' Sets the alpha label for channel 8 to be 'ABC'.

TN=0,0

Clears (blanks) all stored alpha labels

TC

Displays the current channel label on screen for about 10 seconds

DG=,

Moves the cursor to the specified row and column position. If row is 0,

then row will not be changed, and if column is 0, then column will not

be changed.

E7=

Moves cursor to specified column.

E8=

Moves cursor to specified row.

EA

Clear on screen display. Also, moves cursor to column 1 and row 1.

EB

Moves cursor down to the first column of the next row (like a carriage

return plus line feed).

DC

Clear on screen display from the cursor to the end of the screen.

Cursor position does not change.

DB

Clear on screen display from the cursor to the end of the current line.

Cursor position does not change.

E9=

Clears the specified number of spaces. Cursor position does not change

DM

Clears on-screen display. Also, moves cursor to column 1 and row 1,

unblanks screen if it was blanked, and cancels an active „KC‟ or „KT‟

keypad command

DN

Clears on screen display, then writes the specified text to the display

starting at column 1 and row 1.

DW

Writes the specified text to the display starting at current cursor

position.

DQ=

Sets screen timeout to specified time in seconds. If time is 0 or 255,

any text on the screen will persist indefinitely, or until cleared.