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CSU8RF3421 Datasheet(PDF) 3 Page - Core Technology (Shenzhen) Co., Ltd.

Part # CSU8RF3421
Description  12-bit ADC 8 - bit RISC FLASH FLASH MCU
PDF  131 Pages
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Manufacturer  CHIPSEA [Core Technology (Shenzhen) Co., Ltd.]
Direct Link  http://www.chipsea.com/
Logo CHIPSEA - Core Technology (Shenzhen) Co., Ltd.

CSU8RF3421 Datasheet(HTML) 3 Page - Core Technology (Shenzhen) Co., Ltd.

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CSU8RF3421/CSU8RF3422/CSU8RF3423
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第 33 页
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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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