VIDEO-TEX CARD

摘要

The circuit combines the functions of modem and VGA into one board to simplify videotex card and reduce the cost of manufacturing. It includes a VGA and modem controller (100), a VGA section (200) for converting the display data of external memory to video signal, a video RAM section (300) for storing the display data, a modem section (500) for D/A & A/D converting the data to be transferred, and a network connecting section (600).