According to the logic chip design feature, the chip work's time signal can be divided into 4 kinds: clock signal, input signal, combination output signal and register output signal.
按照逻辑芯片设计特点，将芯片工作时的信号分为4种：时钟信号、输入信号、组合输出信号和寄存器输出信号。
Another unique architectural feature is the memory system which allows an instruction fetch and at the same time a data access by each individual core at every single clock cycle.
另一个独特的构架特性是内存系统，它允许一个取指，并在同一时间，每一个核可以读取数据在每一个单独的时钟周期内。
The paper introduces the function, the feature, the principle and the application of hige accuracy real time clock chip RTC4553, it gives hardware and software design.
介绍了高精度实时时钟芯片rtc 4553的功能、特点、原理及应用，并给出了电路原理图和控制程序。
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