文件名称:tlv1544
- 所属分类:
- 单片机(51,AVR,MSP430等)
- 资源属性:
- [Text]
- 上传时间:
- 2012-11-26
- 文件大小:
- 1kb
- 下载次数:
- 0次
- 提 供 者:
- 相关连接:
- 无
- 下载说明:
- 别用迅雷下载,失败请重下,重下不扣分!
介绍说明--下载内容均来自于网络,请自行研究使用
TLV1544与TMS320VC5402通过串行口连接,此时,A/D转换芯片作为从设备,DSP提供帧同步和输入/输出时钟信号。TLV1544与DSP之间数据交换的时序图如图3所示。
开始时, 为高电平(芯片处于非激活状态),DATA IN和I/OCLK无效,DATAOUT处于高阻状态。当串行接口使CS变低(激活),芯片开始工作,I/OCLK和DATAIN能使DATA OUT不再处于高阻状态。DSP通过I/OCLK引脚提供输入/输出时钟8序列,当由DSP提供的帧同步脉冲到来后,芯片从DATA IN接收4 b通道选择地址,同时从DATAOUT送出的前一次转换的结果,由DSP串行接收。I/OCLK接收DSP送出的输入序列长度为10~16个时钟周期。前4个有效时钟周期,将从DATAIN输入的4 b输入数据装载到输入数据寄存器,选择所需的模拟通道。接下来的6个时钟周期提供模拟输入采样的控制时间。模拟输入的采样在前10个I/O时钟序列后停止。第10个时钟沿(确切的I/O时钟边缘,即上升沿或下降沿,取决于操作的模式选择)将EOC变低,转换开始。
-TLV1544 with TMS320VC5402 through serial port connectivity, at this time, A/D conversion chip as from the equipment, to provide fr a me synchronization DSP and input/output clock signal. TLV1544 DSP and data exchange between the chronology of the map is shown in figure 3. At the beginning of the margin (in chip-activated), and I DATA IN/OCLK invalid, DATAOUT at high resistance state. When the serial interface CS change low (activator), the chip start work, I/OCLK and DATAIN can DATA OUT is no longer in a state of high resistance. DSP through I/OCLK pin provide input/output clock 8 sequence, When the DSP from the fr a me synchronization pulse, the chip from the DATA IN receive four channels to choose b address, DATAOUT sent from the same time the previous conversion results from the
开始时, 为高电平(芯片处于非激活状态),DATA IN和I/OCLK无效,DATAOUT处于高阻状态。当串行接口使CS变低(激活),芯片开始工作,I/OCLK和DATAIN能使DATA OUT不再处于高阻状态。DSP通过I/OCLK引脚提供输入/输出时钟8序列,当由DSP提供的帧同步脉冲到来后,芯片从DATA IN接收4 b通道选择地址,同时从DATAOUT送出的前一次转换的结果,由DSP串行接收。I/OCLK接收DSP送出的输入序列长度为10~16个时钟周期。前4个有效时钟周期,将从DATAIN输入的4 b输入数据装载到输入数据寄存器,选择所需的模拟通道。接下来的6个时钟周期提供模拟输入采样的控制时间。模拟输入的采样在前10个I/O时钟序列后停止。第10个时钟沿(确切的I/O时钟边缘,即上升沿或下降沿,取决于操作的模式选择)将EOC变低,转换开始。
-TLV1544 with TMS320VC5402 through serial port connectivity, at this time, A/D conversion chip as from the equipment, to provide fr a me synchronization DSP and input/output clock signal. TLV1544 DSP and data exchange between the chronology of the map is shown in figure 3. At the beginning of the margin (in chip-activated), and I DATA IN/OCLK invalid, DATAOUT at high resistance state. When the serial interface CS change low (activator), the chip start work, I/OCLK and DATAIN can DATA OUT is no longer in a state of high resistance. DSP through I/OCLK pin provide input/output clock 8 sequence, When the DSP from the fr a me synchronization pulse, the chip from the DATA IN receive four channels to choose b address, DATAOUT sent from the same time the previous conversion results from the
(系统自动生成,下载前可以参看下载内容)
下载文件列表
tlv1544.txt