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CSU8RF3421 Datasheet(PDF) 3 Page - Core Technology (Shenzhen) Co., Ltd. |
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CSU8RF3421 Datasheet(HTML) 3 Page - Core Technology (Shenzhen) Co., Ltd. |
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3 / 131 page ![]() CSU8RF3421/CSU8RF3422/CSU8RF3423 R Re ev v..1 1..2 2 第 第 33 页 页, ,共 共 113311 页 页 目 录 版本历史 ................................................................................................................................................................. 2 目 录 ...................................................................................................................................................................... 3 1 产品概述 ......................................................................................................................................................... 6 1.1 功能描述 ................................................................................................................................................. 6 1.2 主要特性 ................................................................................................................................................. 6 1.3 PIN 配置 .................................................................................................................................................. 7 2 标准功能 ......................................................................................................................................................... 9 2.1 CPU 核..................................................................................................................................................... 9 2.1.1 存储器 ........................................................................................................................................... 11 2.1.2 状态寄存器 ................................................................................................................................... 14 2.1.3 SFR ................................................................................................................................................ 15 2.2 时钟系统 ............................................................................................................................................... 17 2.2.1 概述 ............................................................................................................................................... 17 2.2.2 时钟框图 ....................................................................................................................................... 17 2.2.3 寄存器 ........................................................................................................................................... 18 2.2.4 内部高速 RC 时钟 ........................................................................................................................ 18 2.2.5 内部低速 wdt 时钟........................................................................................................................ 18 2.2.6 外部高速晶振时钟 ....................................................................................................................... 19 2.2.7 外部低速晶振时钟 ....................................................................................................................... 19 2.2.8 外部 RC 振荡器 ............................................................................................................................ 19 2.2.9 外部时钟源 ................................................................................................................................... 19 2.3 复位系统 ............................................................................................................................................... 20 2.3.1 上电复位 ....................................................................................................................................... 21 2.3.2 看门狗复位 ................................................................................................................................... 21 2.3.3 掉电复位 ....................................................................................................................................... 21 2.3.4 外部硬件复位 ............................................................................................................................... 22 2.4 中断 ....................................................................................................................................................... 23 2.4.1 中断使能寄存器 ........................................................................................................................... 25 2.4.2 中断标志寄存器 ........................................................................................................................... 27 2.4.3 外部中断 0 .................................................................................................................................... 29 2.4.4 外部中断 1 .................................................................................................................................... 29 2.4.5 AD 中断溢出................................................................................................................................. 31 2.4.6 定时器 0 溢出中断........................................................................................................................ 31 2.4.7 定时/计数器 2 溢出中断 .............................................................................................................. 31 2.4.8 定时/计数器 3 溢出中断 .............................................................................................................. 31 2.4.9 定时/计数器 4 溢出中断 .............................................................................................................. 31 2.4.10 比较器 0 中断................................................................................................................................ 31 2.4.11 比较器 1 中断................................................................................................................................ 31 2.4.12 比较器 2 中断................................................................................................................................ 31 2.4.13 比较器 3 中断................................................................................................................................ 31 2.4.14 SPI 中断......................................................................................................................................... 31 2.4.15 UART 发送中断............................................................................................................................ 31 2.4.16 UART 接收中断............................................................................................................................ 31 2.4.17 PUSH 和 POP 处理 ....................................................................................................................... 31 2.5 定时器 0 ................................................................................................................................................ 33 2.6 I/O PORT............................................................................................................................................... 35 |
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