ADuC7124
目录
特点................................................. ............................................. 1
应用................................................. ...................................... 1
修订历史................................................ ............................... 2
概述................................................ ......................... 3
详细框图............................................... ............... 3
规格................................................. .................................... 4
时序规格................................................ .................. 8
绝对最大额定值............................................... ........... 12
ESD注意事项................................................ ................................ 12
引脚配置和功能描述........................... 13
典型性能特征........................................... 16
术语................................................. ................................... 19
ADC规格................................................ .................... 19
DAC规格................................................ ..................... 19
ARM7TDMI内核的概述............................................. 20
拇指模式（ T） ............................................. ........................... 20
长乘（M ） ............................................. ......................... 20
嵌入式ICE （我） .............................................. ......................... 20
例外情况................................................. .................................. 20
ARM寄存器................................................ ............................ 20
中断延迟................................................ ........................ 21
存储器结构................................................ ................... 22
内存访问................................................ ........................... 22
Flash / EE存储器.............................................. ......................... 22
SRAM ................................................. .......................................... 22
内存映像寄存器............................................... ........ 22
ADC电路概述............................................... ................... 30
传递函数................................................ ....................... 30
典型的操作................................................ ....................... 31
孕产妇死亡接口................................................ .......................... 31
转换器操作................................................ .................. 33
驾驶模拟输入.............................................. .......... 34
校准................................................. .................................. 35
温度传感器................................................ ................... 35
带隙基准............................................... .................... 36
非易失性Flash / EE存储器............................................. ........ 37
编程................................................. ............................. 37
Flash / EE存储器安全............................................. .......... 38
闪存/ EE控制接口............................................. .......... 38
从SRAM和Flash / EE ............................ 41执行时间
复位和重新映射............................................... ......................... 41
其他模拟外设............................................... ............... 44
DAC ................................................. ............................................. 44
电源监控............................................... ................ 45
比较................................................. ................................ 46
振荡器和PLL功耗控制........................................ 47
数码周边................................................ ........................... 51
通用输入/输出............................................ .... 51
串行端口复用............................................... ............................ 53
UART串行接口............................................... ................. 53
串行外设接口............................................... .......... 59
I
2
C ................................................................................................. 63
PWM总体概述............................................... ............ 71
可编程逻辑阵列（ PLA） ........................................... 74
处理器参考外设............................................... .... 77
中断系统................................................ ......................... 77
IRQ ................................................. .............................................. 77
快速中断请求（ FIQ ） ............................................ ........ 78
向量中断控制器（ VIC ） ....................................... 79
定时器................................................. ......................................... 84
硬件设计注意事项............................................... 。 90
电源................................................ ............................ 90
接地和电路板布局建议................. 91
时钟振荡器................................................ .......................... 91
上电复位操作............................................. ........... 92
外形尺寸................................................ ....................... 93
订购指南................................................ .......................... 93
修订历史
7月10日 - 修订版0 ：初始版
第0版|第96 2
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