The attached project is a transliterated version of the assembler program that is shown at the end of the T6963C datasheet.
The original code uses memory mapped mode, this version uses 2 ports from an AVR. The code is small enough to run in a Tiny2313 (476 bytes).
The main routines can be improved if anyone wants to use this code. It is intended for someone to get something happening on the screen quickly and get an understanding of the communications process involved.
As always use at own risk...