PDS-500 Datasheet, PDF (5/9 Pages) Vishay Siliconix – Graphic Plasma Display Controller

PDS-500/-1
Vishay Dale
COMMAND STRUCTURE, TEXT MODE (SOFTWARE INSTRUCTIONS)
The ASCII control code characters from 00h to 1Fh are reserved by the controller for the command interpreter. A brief listing
of the available commands and their description follows. Text mode operation is not true text mode, but rather simulated in
graphics mode. Text and Graphics may be mixed on the same screen.
HEX
CODE
00-07
08
09
0A
0B
0C
0D
0E
0F
10
11
12
NUMBER
OF BYTES
1
1
1
1
1
1
1
3
2
13
14
2
15
1
16
17
18
19
1
1A
1B
1C
1
1D
1
1E
1
1F
1
NOTE:”*” indicates power up default
TEXT FUNCTIONS
No function
Back Space Cursor: Moves the cursor 1 column to the left in the current row. If the
cursor is at the 1st column it will move to the end of the previous line.
Horizontal Tab: Moves the cursor 1 column to the right.
Will wrap around until the end of the screen. If mode is set to SCROLL then the screen
will scroll up one line at the last character position of the last row, if not in SCROLL mode
then the cursor will wrap to the HOME position.
Line Feed: Moves cursor down one row while remaining in same column position. If
mode is set to SCROLL, when the cursor is at bottom row of screen, the screen will
move (scroll) up 1 row and bottom row will be cleared (filled with spaces) when line feed
is invoked. If not in SCROLL mode then the cursor will wrap to the first row.
Vertical Tab: Moves cursor up one row while remaining in the same column position.
The cursor will wrap to the bottom row after the top row.
Clear Screen: Fill the screen with blank characters, cursor moves to HOME position.
Carriage Return: Moves cursor to the first column of the present row.
Home Cursor: Moves cursor to the 1st character position of the 1st row, the HOME position.
NO OPERATION
NO OPERATION
Position Cursor: Moves cursor to a specified column, row address depending upon next 2
bytes sent. The format is x,y or col, row. The upper left corner is 0,0.
Select Cursor: Following byte selects cursor style:
*01h = Blinking Underbar
02h = Non-Blinking Underbar
03h = Blinking Block
04h = Non-Display Cursor
NO OPERATION
Select Character Font: Following byte selects one of 4 character generator fonts:
01h = font 1: 4x5 character in 5x6 block
*02h = font 2: 5x7 character in 6x8 block
03h = font 3: 10x14 character in 12x16 block
The cursor is moved to the home position when changing fonts.
Select reverse video characters (black on orange)
NO OPERATION
NO OPERATION
NO OPERATION
*Select normal video characters (orange on black). This disables the previous command (15h).
RESERVED, do not use
see ESCAPE control codes
Set to Scroll Mode: Sets the display mode so that whenever the cursor reaches the last
position in the last column or a line feed occurs while cursor is on last row, the screen will
scroll up one row. The top row of data will be lost and the bottom row of the display will
be erased.
*Set to AutoWrap Mode: In this mode, the cursor will automatically wrap around to the
next row. When the last character position on the screen is reached, the cursor will
return to HOME position.
Blank Display: The display is blanked but display memory is maintained and new data
can be entered.
*UnBlank Display: The display is restored/turned to active state.
Document Number: 37074
Revision 14-Mar-02
www.vishay.com
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