The Futaba NA202SD08FA vfd has a 8bit interface and 1 write strobe to command the display. You can control the display with a set of predefined characters and cursor commands. For example hex 0x14 resets the display hex 0x21 shows an ! After every byte the write strobe is set to high for 250 micro sec.
FutabaVfd.ino is writen for the arduino ide. Check http://www.torretje.nl/Projects/Futaba for more info.
Code is free to use for any purpose.