Patent ID: 6606672
Filing Date: 2003-08-12
Classification: G06F

Abstract:
A single-chip based electronic appliance comprising:a data bus for transmitting data; an input device electrically connected with the data bus for providing data; an output device electrically connected with the data bus for receiving data, the output device comprising a device enable pin for controlling the on and off status of the output device; a micro-controller electrically connected with the data bus for controlling the input device and output device; an address bus electrically connected with the micro-controller; and a position decoder electrically connected between the address bus and the device enable pin of the output device; wherein when an address outputted by the micro-controller to the address bus is a predetermined address, the position decoder triggers the output device by using the device enable pin of the output device so that when the micro-controller reads a datum from the input device through the data bus, it writes the datum to the output device through the data bus in one instruction cycle to increase a data transmission speed between the input device and the output device.