| 摘要 |
The problem of increased power consumption due to infrared remote control false alarm handling by a main TV controller (88) and power dissipation due to leakage current is addressed by fully delegating standby tasks to a low power delegate controller (90) with minimal local resources and having high performance and many dissipating system parts disabled. In low power standby mode the delegate controller (90) validates autonomously a remote control (42) command, a keypad (34) press, a timer alarm, and external interrupt etc. The TV system is powered up only when a command is valid. Use of a switched power supply voltage (70) reduces the leakage current problem. The delegate micro-controller is included on the same integrated circuit (IC) package as the main micro-controller, advantageously on the same IC die. |
