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手册中，AM1808的LCD接口最大支持1024*1024分辨率，但是PIXEL时钟最大仅为37.5M，那么对于比较常见的1024×768分辨率的LCD来说，刷新频率（理论上）仅仅能够达到37500000/1024*768 = 47.7HZ，这种刷新频率很难达到显示要求啊，请问这个参数是否有出入？PIXEL时钟最大仅为37.5M么？谢谢！
processors.wiki.ti.com/.../AM1x_LCD_Controller_(LCDC)_Throughput_and_Optimization_Techniques%E6%9C%89%E8%AF%A6%E7%BB%86%E6%8F%8F%E8%BF%B0。
在PCLK等于37.5M下，1024*1024的帧率27帧，1024*768帧率36帧。
