PM866K01 3BE050198R1 ABB输出模块数字

 PM866K01 3BE050198R1  ABB输出模块数字

数字信号处理器(DSP)专门用于信号处理。

图形处理单元(GPU)处理器主要是为实时渲染图像。

存在其他专门单位，用于视频处理和计算机视觉。(参见:硬件加速。)

微控制器在嵌入式系统和外围设备。

片上系统通常将一个或多个微处理器和微控制器内核与无线电调制解调器等其他组件集成在一起，用于智能手机和平板电脑。

微处理器可以根据它们的字长(衡量其复杂性的一种方法)来选择用于不同的应用。较长的字长允许每个时钟周期以执行更多的计算，但是对应于具有更高待机和操作的物理上更大的集成电路管芯功率消耗。4位、8位或12位处理器广泛集成到运行嵌入式系统的微控制器中。

当系统   要处理大量数据或需要更灵活的用户界面使用16位、32位或64位处理器。一个8- or16位可以选择处理器而不是32位处理器片上系统或微控制器应用低功率电子设备或者是的一部分混合信号集成电路具有噪声敏感型片内模拟电子学例如高分辨率模数转换器或两者。有些人说，在8位芯片上运行32位算法可能会消耗更多的功率，因为芯片必须用多条指令执行软件。然而，也有人说，在运行同等软件例程时，现代8位芯片总是比32位芯片更省电。

 PM866K01 3BE050198R1  ABB输出模块数字

Digital signal processor (DSP) is specially used for signal processing.

Graphics processing unit (GPU) processor is mainly used to render images in real time.

Other specialized units exist for video processing and computer vision. (See: Hardware Acceleration. )

Microcontrollers are used in embedded systems and peripherals.

System-on-a-chip usually integrates one or more microprocessors and microcontroller cores with other components such as radio modems for smart phones and tablets.

Microprocessors can be selected for different applications according to their word length (a measure of their complexity). A longer word length allows more calculations to be performed per clock cycle, but corresponds to physically greater power consumption of the integrated circuit die with higher standby and operation. 4-bit, 8-bit or 12-bit processors are widely integrated into microcontrollers running embedded systems.

Use a 16-bit, 32-bit or 64-bit processor when the system needs to process a large amount of data or needs a more flexible user interface. An 8- or16-bit processor can be selected instead of a 32-bit processor. A system-on-chip or microcontroller uses low-power electronic devices, or a part of mixed-signal integrated circuits has noise-sensitive on-chip analog electronics such as a high-resolution analog-to-digital converter or both. Some people say that running a 32-bit algorithm on an 8-bit chip may consume more power because the chip must execute software with multiple instructions. However, some people say that modern 8-bit chips always save more power than 32-bit chips when running equivalent software routines.