PDS-500 Datasheet, PDF (6/9 Pages) Vishay Siliconix – Graphic Plasma Display Controller

PDS-500/-1
Vishay Dale
COMMAND SET, GRAPHIC MODE (Software Instructions)
CURSOR LOCATION
All graphic cursor locations are based upon pixel location - NOT - character column and row locations. For example, the upper
left hand corner is 000,000 (X,Y) while the lower right hand corner might be 127,063 (X,Y). The cursor indicates the upper left
corner of the location of the character. The cursor auto-increments based upon the character font size by the width of the font.
The graphic mode cursor is not visible, it may be desirable to turn-off the text mode cursor when performing graphics operations.
WRITE MODE
Within most commands, the LOGIC BYTE must be included:
0 = SET PIXELS
(turn-on foreground pixels)
1 = XOR PIXELS
(invert foreground pixels)
2 = RESET PIXELS
(turn-off foreground pixels)
3 = OVERWRITE
(turn-on foreground and turn-off background pixels, image write and graphic text
commands only)
4 = REVERSE VIDEO OVERWRITE
(turn-off foreground and turn-on background pixels, image write and graphic text
commands only)
FONT SIZE
The FONT SIZE must be written before text is written. There are three standard fonts included in the graphics mode. Refer
to font tables for supported characters and fonts.
1 = FONT 1, a 4 x 5 character in a 5 x 6 block
2 = FONT 2, a 5 x 7 character in a 6 x 8 block
3 = FONT 3, a 10 x 14 character in a 12 x 16 block.
NOTE- In graphics mode, the LOGIC byte and FONT byte are sent in ASCII format. For example, to select font 2, send 32h -NOT 02h.
DATA FORMAT
All addresses must be sent in ASCII format. Column and row positions begin at the upper left hand corner at address 000,000
(X,Y). A pixel address consists of a column address followed by row address. Addresses are sent to the panel as a three
character ASCII sequence for column (x) followed by a three character ASCII sequence for row (y). An example is the upper left
hand pixel is 000,000 while the lower right hand corner is 127,063.
NOTE: Spaces and commas are shown in the graphic sequences only for clarity and must not occur in the actual commands
transmitted to the panel.
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Document Number: 37074
Revision 14-Mar-02