| 摘要 |
Provided is a television KARAOKE chip with 2000 songs, including: a controller of a micro processor for receiving a user's selection spec and externally receiving/outputting an address signal, the controller for controlling the internal operation receiving/outputting a data signal and outputting a memory request signal, an input/output strobe signal and an address signal to a gate array, the gate array converting them into a read/write signal, a memory blanking signal, a chip selecting signal, a video read signal and a video write signal, an external access outputting the write signal and read signal, the controller receiving an external reset signal and initializing the inside and outputting midi-data among the externally received data signals externally through a series interface; a controlling unit of a video display IC for receiving the address signal and the data signal from the controller, also receiving the video read signal, video write signal and a reset signal through an interface and outputting a video address signal and an output enable signal and a write enable signal to a memory in order to read out the video data corresponding to the background of the screen and the words of the song, the controller also externally outputting color signals R, G, B through a color palette and outputting a clock signal, a synchronization signal, a horizontal reset signal, and a vertical reset signal to the external display device; a sound-source data ROM for receiving the chip selecting signal, output enable signal and address signal from the controller of the micro processor and outputting the internal midi-data as the data signal; a controlling unit of a midi-synthesizer for receiving the midi-data and outputting a clock signal for synchronization, operating a midi-interrupter; and the midi-interrupter for outputting the synthesized sounds synthesized in a synthesizing unit with the electronic sounds generated in a synthesizer engine according to the data in a sample ROM. |
