C8051F120的定时器及外部中断使用C程序，包括各定时的8/16重载，捕捉，高速切换等。经片上调试通过，放心下载使用-C8051F120 timer and external interrupts use the C program, including the timing of the 8/16 overload, capture, high-speed switching. The on-chip debugging through, secure download