当DS90UB954与DS90UB953处于同步模式的时候,954是怎么通过同轴电缆给953提供时钟的,与线面截图中的信息有关吗?是说后向通道中的一帧数据包含iic、gpio、以及954提供的clock信号?
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当DS90UB954与DS90UB953处于同步模式的时候,954是怎么通过同轴电缆给953提供时钟的,与线面截图中的信息有关吗?是说后向通道中的一帧数据包含iic、gpio、以及954提供的clock信号?
您好,一种是外部帧频同步模式,一种是内部帧频同步模式, 两种模式的图示参考Figure 29和Figure 31。可以看到都是通过back channel的GPIO 传输给serializer的GPIO 引脚。
In External FrameSync mode, an external signal is input to the DS90UB954-Q1 through one of the GPIO pins on the device.
In Internal FrameSync mode, an internally generated FrameSync signal is sent to one or more of the attached FPD-Link III Serializers through a GPIO signal in the back channel.