A Design of a TV Microcontroller Chip With Built-in Thai-English on Screen Display

Atsadang Tansathit and Ekachai Leelarasmee

Electrical Engineering Department, Faculty of Engineering, Chulalongkorn University

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ABSTRACT

This paper describes the internal architecture of a TV microcontroller designed by using VHDL and synthesized on an FPGA chip. The chip consists of an 8-bit CPU, an on screen display (OSD), a remote control preprocessor, five pulse width modulators, and I/O ports. Only 3 more external chips, i.e. ROM, RAM, and A/D are required to make this microcontroller perform various TV control functions that are common in many advanced and commercialized TV microcontroller chips. Moreover, the OSD is specially designed to support the display of Thai and English text.

 

Keywords: TV Microcontroller, Thai-English On Screen 

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