| 摘要 |
PURPOSE:To increase the character output speed by providing three buses, i.e. a control data bus which inputs control data, a font bus which inputs font data, and an output data bus which outputs bit map data to the character generating device which inputs the font data on characters and converts them into bit map data. CONSTITUTION:A CPU 1 actuates the character generating device 3 and transfers character code data on characters to be outputted to the character generating device 3 through the control data bus 7. The character generating device 3 which receives the character code data inputs font data such as contour information, etc., on the corresponding characters from a font ROM 2 through the font data bus 8 according to the character code data. The character generating device 3 converts the font data inputted from the font ROM 2 into the bit map data according to various kinds of information inputted from an input device 6 and outputs them. The bit map data outputted from the character generating device 3 are transferred to a memory 4 through the output data bus 9 and the contents of the memory 4 are outputted to an output engine 5 to print or display the characters. |
