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In addition to setting the clock frequency, the master must also configure the clock polarity and phase with respect to the data. Freescale's SPI Block Guide [1] names these two options as CPOL and CPHA respectively, and most vendors have adopted that convention.

除了设置时钟频率，主设备同样需要设置数据传输相关的时钟极性以及相位。freescale'sSPI的手册命名这分别以cpol以及cpha来标志时钟的极性以及相位，大部分的芯片厂商采用了这种协定。

This paper presents the Proteus software under a micro-controller board simulation method, and gives a digital-to-analog converter, analog-to-digital conversion、ISP programming、numeral clock 、real-time digital clock ﹑ Lantern experimental keyboard ﹑lattice LED ﹑ Relay, voice and other tenets of the hardware modules and software flow chart.

本文介绍了在Proteus软件下实现了一套单片机实验板的仿真方法，并给出了数模转换、模数转换﹑ISP编程﹑数字钟﹑实时时钟、键盘﹑彩灯实验﹑点阵LED显示屏﹑继电器、语音等模块的硬件原理及软件流程图。

This paper presents the Proteus software under a micro-controller board simulation method, and gives a digital-to-analog converter, analog-to-digital conversion、ISP programming、numeral clock 、real-time digital clock ﹑ Lantern experimental keyboard ﹑lattice LED ﹑ Relay, voice and other tenets of the hardware modules and software flow chart.

论文编号：JD607 包括开题报告，任务书，外文翻译，论文字数：10522，页数：46本文介绍了在Proteus软件下实现了一套单片机实验板的仿真方法，并给出了数模转换、模数转换﹑ISP编程﹑数字钟﹑实时时钟、键盘﹑彩灯实验﹑点阵LED显示屏﹑继电器、语音等模块的硬件原理及软件流程图。

Pinout: C High-performance 32-bit RISC Architecture C High-density 16-bit Instruction Set C Leader in MIPS/Watt C Little-endian C Embedded ICE (In-circuit Emulation) 8-, 16- and 32-bit Read and Write Support 256K Bytes of On-chip SRAM C 32-bit Data Bus C Single-clock Cycle Access Fully Programmable External Bus Interface C Maximum External Address Space of 64M Bytes C Up to Eight Chip Selects C Software Programmable 8/16-bit External Data Bus Eight-level Priority, Individually Maskable, Vectored Interrupt Controller C Four External Interrupts, including a High-priority, Low-latency Interrupt Request 32 Programmable I/O Lines Three-channel 16-bit Timer/Counter C Three External Clock Inputs C Two Multi-purpose I/O Pins per Channel Two USARTs C Two Dedicated Peripheral Data Controller Channels per USART Programmable Watchdog Timer Advanced Power-saving Features C CPU and Peripheral Can be Deactivated Individually Fully Static Operation: C 0 Hz to 75 MHz Internal Frequency Range at VDDCORE = 1.8V, 85C 2.7V to 3.6V I/O Operating Range 1.65V to 1.95V Core Operating Range -40C to +85C Temperature Range Available in 100-lead TQFP Package

M5L8253P-5引脚说明： C型高性能32位RISC架构C高密度以MIPS /瓦C小端C十六位指令集C领袖嵌入式冰8 - 16 -位和32位的读写支持256K的片上SRAM的 32位数据总线C单时钟周期存取字节完全可编程的外部总线接口C最大的外部地址空间的64M字节多达8个C芯片选择C软件可编程8位外部数据总线8级优先级，独立可屏蔽，向量中断控制器C四外部中断，其中包括一个高优先级，低延迟中断要求32个可编程I / O口线三通道16位定时器/计数器C三个外部时钟输入C两多用途I / O引脚每通道2个通用同步C两专用外设数据控制器通道每个USART可编程看门狗定时器先进的节能特性 CPU和外设可停用独立全静态工作中：C 0 Hz至75 MHz的频率范围内的VDDCORE = 1.8，85℃2.7V到3.6VI / O的操作1.65V到1.95V范围核心工作电压范围在- 40C至+85 C温度范围内使用的100引脚TQFP封装

For every pass, each clock slave component generates and transmits a first timing cell to the clock master.

每一遍，每个从时钟部件产生并发送第一定时信元至主时钟。

SYNCHRONOUS OPERATION For synchronous operation, the same master clock and bit clock should be used for both the transmit and receive directions.

对于同步操作同步操作，相同的主时钟和位时钟都应该用于发送和接收方向。

Zero- ohm jumper R35 is installed to pass either of these clock sources to the DDX-2000 master clock input.

零欧姆跳线R35小安装通过这些无论对时钟源的DDX - 2000主时钟输入。

The picture to the right shows the word clock output of the HDSP 9632, which is directly fed from the internal master clock - and with this from SteadyClock.

下图显示了 HDSP 9632 的字时钟输出，它是直接被内部主时钟驱动的，也使用了 SteadyClock 技术。

The Precision Time Protocol of the IEEE 1588 protocol provides an effective technique to synchronize the master clock and the slave clock.

IEEE 1588协议的精密时间协议提供了一种网络控制系统中主从时钟交换报文达到时钟精准同步的有效方法。

The clock is similar in appearance to the "master" type of clock with a one seconds pendulum and uses the Scotts notched tooth principle of pendulum propulsion.

时钟是类似在外观上，以&师父&类型的时钟与一秒钟摆，并使用scotts缺口牙齿的原则，摆推进。

If you were not , and OS X just booted normally, have no fear.

如果你没有，和OS X刚刚启动通常，没有恐惧。

I only want to preserve our all .

我只想保存好我们的一切