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The information presented in this cross reference is based on TOSHIBA's selection criteria and should be treated as a suggestion only. Please carefully review the latest versions of all relevant information on the TOSHIBA products, including without limitation data sheets and validate all operating parameters of the TOSHIBA products to ensure that the suggested TOSHIBA products are truly compatible with your design and application.
Please note that this cross reference is based on TOSHIBA's estimate of compatibility with other manufacturers' products, based on other manufacturers' published data, at the time the data was collected.
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NVIC的作用
NVIC控制寄存器作为从主内核到存储器的设备被访问.
- 控制各中断使能的设置与清除；
- 控制各中断请求的设置与清除（释放保留）；
- 控制中断的优先级。
下面我们将介绍NVIC块的基本功能之一—外部中断处理控制。
将使能位和挂起位分配给每个外部中断信号，并配置控制寄存器。控制寄存器分为仅设置寄存器和仅清除寄存器。
外部中断的产生通过优先级寄存器的信息来控制。该寄存器用于设置中断优先级以及使能位和挂起位的状态。
第Ⅱ章：Arm® Cortex®-M3
* Arm和Cortex是Arm有限公司（或其子公司）在美国和／或其它国家的注册商标。