SN8P2711B
8-Bit Micro-Controller
SONiX TECHNOLOGY CO., LTD Page 4 Version 1.0
4.2 指令周期FCPU .................................................................................................................................................. 38
4.3 NOISE
FILTER ................................................................................................................................................ 38
4.4 系统高速时钟 ................................................................................................................................................... 39
4.4.1 HIGH_CLK编译选项 .................................................................................................................................... 39
4.4.2 内部高速RC振荡器（IHRC） ...................................................................................................................... 39
4.4.3 外部高速振荡器 ........................................................................................................................................... 39
4.4.4 外部振荡应用电路 ....................................................................................................................................... 39
4.5 系统低速时钟 ................................................................................................................................................... 40
4.6 OSCM寄存器 ................................................................................................................................................... 41
4.7 系统时钟测试 ................................................................................................................................................... 41
4.8 系统时钟时序 ................................................................................................................................................... 42
5 系统工作模式 ............................................................................................................................................................ 44
5.1 概述 .................................................................................................................................................................. 44
5.2 普通模式 .......................................................................................................................................................... 45
5.3 低速模式 .......................................................................................................................................................... 45
5.4 睡眠模式 .......................................................................................................................................................... 45
5.5 绿色模式 .......................................................................................................................................................... 46
5.6 工作模式控制宏 ............................................................................................................................................... 47
5.7 系统唤醒 .......................................................................................................................................................... 48
5.7.1 概述 ............................................................................................................................................................. 48
5.7.2 唤醒时间 ...................................................................................................................................................... 48
6 中断 .......................................................................................................................................................................... 49
6.1 概述 .................................................................................................................................................................. 49
6.2 中断请求使能寄存器INTEN ............................................................................................................................. 49
6.3 中断请求寄存器INTRQ .................................................................................................................................... 50
6.4 GIE全局中断 .................................................................................................................................................... 50
6.5 PUSH,
POP处理 .............................................................................................................................................. 51
6.6 INT0（P0.0）中断 ........................................................................................................................................... 52
6.7 INT1（P0.1）中断 ........................................................................................................................................... 53
6.8 TC0 中断 .......................................................................................................................................................... 54
6.9 TC1 中断 .......................................................................................................................................................... 55
6.10 ADC中断 .......................................................................................................................................................... 56
6.11 多中断操作举例 ............................................................................................................................................... 57
7 I/O口 ......................................................................................................................................................................... 58
7.1 I/O口模式 ......................................................................................................................................................... 58
7.2
I/O上拉电阻寄存器 ........................................................................................................................................... 59
7.3 I/O口数据寄存器 .............................................................................................................................................. 60
7.4 P4 口ADC共用引脚 .......................................................................................................................................... 61
8 定时器 ....................................................................................................................................................................... 63
8.1 看门狗定时器 ................................................................................................................................................... 63
8.2 定时/计数器TC0 ............................................................................................................................................... 64
8.2.1 概述 ............................................................................................................................................................. 64
8.2.2 TC0 操作 ..................................................................................................................................................... 65
8.2.3 TC0M模式寄存器 ........................................................................................................................................ 66
8.2.4 TC0X8, TC0GN标志 .................................................................................................................................... 67
8.2.5 TC0C计数寄存器 ......................................................................................................................................... 67
8.2.6 TC0R自动装载寄存器 .................................................................................................................................. 68
8.2.7 TC0 事件计数器 ........................................................................................................................................... 69
8.2.8 TC0 时钟频率输出（BUZZER） ................................................................................................................. 70
8.2.9 脉冲宽度调制（PWM） ............................................................................................................................... 71
8.2.10 TC0 操作举例 .......................................................................................................................................... 72
8.3 定时/计数器TC1 ............................................................................................................................................... 74
8.3.1 概述
............................................................................................................................................................. 74
8.3.2 TC1 操作 ..................................................................................................................................................... 75
8.3.3 TC1M模式寄存器 ........................................................................................................................................ 76
8.3.4 TC1X8 标志 ................................................................................................................................................. 76
8.3.5 TC1C计数寄存器 ......................................................................................................................................... 77
8.3.6 TC1R自动装载寄存器 .................................................................................................................................. 78
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