Realize exempting from to start shooting case CMOS's circuit clearly through reset key

• Main Author: ZHOU YUANQING
• Format: Patent
• Language: Chinese; English
• Published: 31.08.2018
• Subjects: CALCULATING; COMPUTING; CONTROL OR REGULATING SYSTEMS IN GENERAL; CONTROLLING; COUNTING; ELECTRIC DIGITAL DATA PROCESSING; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS ORELEMENTS; PHYSICS; REGULATING

The utility model discloses a realize exempting from to start shooting case CMOS's circuit clearly through reset key, this circuit include reset key circuit, CPLD circuit, south bridge supply circuitand south bridge, reset key circuit, south bridge supply circuit and south bridge all are connected with CPLD circuit electricity. The long reset key of pressing under mainboard power off, the reset key lasts the low level to one CPLD output, and CPLD passes through program set, and output is formulated signal control south bridge supply circuit and is stopped the south bridge power supply, and clear CMOS instruction is carried out to the simultaneous control south bridge. The final completion exempts from to start shooting the clear CMOS work of case. 本实用新型公开了种通过复位键实现免开机箱清CMOS的电路，该电路包括复位键电路，CPLD电路、南桥供电电路和南桥；复位键电路、南桥供电电路和南桥均与CPLD电路电连接。在主板关机状态下长按下复位键，复位键向CPLD输出个持续低电平，CPLD通过程序设定，输出制定信号控制南桥供电电路停止对南桥供电，同时控制南桥执行清CMOS指令。最终完成免开机箱清CMOS工作。