The data bus must go into a high-impedance state at least one cycle before output of the latest data.
在这种切换中，读出的数据有效前，数据总线至少需要有一个时钟的高阻状态。Data bus technology is a means of communication widely used in aerocraft control system.
数据总线技术是飞行器控制系统中广泛采用的一种通讯方式。Due to lack of data and address parallel bus on TMS320F2808, the two DSPexchange data by means of communication through SPI interface.
由于采用的TMS320F2808不具备数据总线与地址总线，两个DSP之间采用SPI串行通讯的方式实现数据交换。The data from the sensor gets read back together with all the other bus lines. This process occurs simultaneously with the write process.
从传感器反馈回来的数据在其他的数据总线上重复执行，这个进程和写的进程同时发生。The meteorological data gathering task ran as an infrequent, low priority thread, and used the information bus to publish its data.
气象数据进程负责把收集到的气象数据放到数据总线上，运行不频繁，是低优先级进程。It is of course possible to read larger chunks of data on some targets with wider data bus and wider data registers .
当然，在某些有更宽数据总线和数据寄存上的目标处理器上，可以一次读取更大的数据块。A bus management task ran frequently with high priority to move certain kinds of data in and out of the information bus.
有一个数据总线进程，经常以高优先级运行，负责把数据总线中的数据取出来。Input data appearing on the data bus, is written to the memory array subject to the DM input logic level appearing coincident with the data.
数据总线上的输入数据是否写入存储器，取决于此时的DM的输入逻辑。Absrtact: High speed data bus technology is one of the core techniques in avionics.
摘要：高速数据总线技术是航空电子中的关键技术之一。