例如，在驱动程序与硬件进行通信时，它操纵寄存器以便请求一些所需的设备操作。
For example, when a driver communicates with hardware, it manipulates registers to request some desired operation of the device.
这个寄存器定义了将用于数据通信的物理串行接口。
This register defines the physical serial interface which will be used for data communications.
本文主要介绍了CC2420的管脚结构及功能、寄存器寻址、与微处理器P89LPC924的通信以及CC2420的状态控制流程。
This paper introduces the pins configuration and function of CC2420, the register access, communication with the MPU P89LPC924 and the state controlling flow.
在通信协议中，主要实现了双向数据缓冲器、数据移位寄存器、时钟控制电路以及奇偶校验等功能。
The protocol realized some functions, such as two-way data buffer, shift register, clock circuit and parity check.
在通信协议中，主要实现了双向数据缓冲器、数据移位寄存器、时钟控制电路以及奇偶校验等功能。
The protocol realized some functions, such as two-way data buffer, shift register, clock circuit and parity check.
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