RESET SIGNAL GENERATING CIRCUIT BUILT IN A LCD CONTROLLER

摘要

PURPOSE: A reset signal generating circuit built in a lcd controller is provided to discriminate the operational state of the controller and generate a reset signal for initializing the controller in case that an error operation is occurred. CONSTITUTION: The reset signal generating circuit built in a lcd controller comprises a discriminating part(10), a transfer part(20) and an output part(30). The discriminating part(10) checks a frame signal(FRAME) using a vertical synchronizing signal(Vsync) to discriminate the operational state of the controller. The transfer part(20) transfers the output signal(na1) of the discriminating part(10) to the output part(30). The output part(30) receives the output signal(na1) of the transfer part(20) to generate a reset signal(Reset) in accordance a data enable signal(DE).