单项选择题Which is true about the function of the following Xilinx C statement? 关于以下Xilinx C函数的功能说法正确的是? Xil_Out32(XPAR_AXI_TIMER_0_BASEADDR+XTC_TCSR_OFFSET, (Xil_In32(XPAR_AXI_TIMER_0_BASEADDR+XTC_TCSR_OFFSET)& ~XTC_CSR_LOAD_MASK)|XTC_CSR_ENABLE_TMR_MASK| XTC_CSR_AUTO_RELOAD_MASK|XTC_CSR_ENABLE_INT_MASK| XTC_CSR_DOWN_COUNT_MASK); A、Set the working mode of Timer T0 as: automatic loading, enable interrupt, count down, start timing, cancel manual loading 将Timer T0的工作方式设置为:自动装载、使能中断,减计数、启动计时,取消手动装载 B、Set the working mode of Timer T0 as: automatic loading, enable interrupt, count down, start timing, manual loading 将Timer T0的工作方式设置为:自动装载、使能中断,减计数、启动计时,手动装载 C、Set the working mode of Timer T0 as: automatic loading, clear interrupt, count down, start timing, cancel manual loading 将Timer T0的工作方式设置为:自动装载、清除中断,减计数、启动计时,取消手动装载 D、Set the working mode of Timer T0 as: automatic loading, enable interrupt, count up, start timing, cancel manual loading 将Timer T0的工作方式设置为:自动装载、使能中断,加计数、启动计时,取消手动装载