RAiO TECHNOLOGY INC.'s RA8803 and RA8822 are dual-layer Chinese character/graphics LCD controllers. This manual describes the interfaces of the products, LCD driver interfaces, Chinese character ROM, LCD brightness adjustment, touch panel interfaces, system clock, and software and hardware initialization settings.
The document provides a complete overview of the RA8803/RA8822 LCD controller, covering its architecture, supported LCD panels, and the required external circuitry. It includes detailed sections on MPU interfaces, power‑on/reset handling, key scanning, ASCII display, and timing specifications.
Technical details such as supported MPU types (8080 and 6800), display resolutions (320×240 or 240×160), ROM size (512 KB), system clock (8 MHz) and operating voltage (3.3 V) are presented together with register maps and timing diagrams to aid hardware designers in integrating the controller into their products. This manual is written in Chinese.