Xilinx Virtex-4 ML461 User Manual page 102

Appendix B: LCD Interface
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Display Command Byte
The command set of the display can be found in
When the LCD interface is enabled for the first time, a set of command bytes is sent to the
LCD. This command set provides the basic initialization of the LCD display controller.
When this initialization is done, the normal LCD display interface is freed for normal use.
Command bytes from the valid command set can be sent to the display (controller).
A detailed description of the LCD controller interface can be found in the
Toplevel.vhd.txt file.
Display Data Byte
The supplied byte must be a valid ASCII representation of a character as shown in
Figure
102
When the Enable signal and the data_or_command control signal are High, the byte
written is the ASCII character code of the character to be put on the display.
B-9.
Figure B-9: ASCII Character Representations
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Table B-7.
ug079_b_09_081005
Virtex-4 ML461 Development Board User Guide
UG079 (v1.1) September 5, 2007
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