另外，还提供了内置dma控制器(DMAC)和数据传送控制器(DTC)，可实现无cpu干预的高速数据传送。
In addition, an on-chip DMA controller (DMAC) and data transfer controller (DTC) are provided, enabling high-speed data transfer without CPU intervention.
它们将读到的数据传送到本地控制器，根据事先编制的数据库，确认是否可以通行。
They will read the data to the local controller, according to a database compiled in advance, can confirm whether or not passage.
该控制器能够完成LED显示屏所要显示的字符、汉字、图片的编辑和实现200米以内的数据传送。
The controller can edit and transmit some characters, Chinese characters and pictures of LED display screen within 200 meters.
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