C8051F80x-83x
15.2 。数据存储器................................................ .................................................. 。 93
15.2.1 。内部RAM ................................................ ........................................... 93
15.2.1.1 。通用寄存器............................................... ............. 94
15.2.1.2 。位寻址空间............................................... ............... 94
15.2.1.3 。堆栈................................................. ........................................... 94
16.在系统设备识别........................................... ................................. 95
17.特殊功能寄存器............................................. ...................................... 97
18.中断.............................................................................................................. 102
18.1 。 MCU中断源和载体............................................. ................. 103
18.1.1 。中断优先级................................................ .................................. 103
18.1.2 。中断延迟................................................ ................................... 103
18.2 。中断寄存器说明............................................... ....................... 104
18.3 。 INT0和INT1外部中断............................................. .................... 111
19.闪光Memory....................................................................................................... 113
19.1 。闪存编程.............................................. .................... 113
19.1.1 。 FLASH锁定和关键功能............................................. ................. 113
19.1.2 。闪存擦除程序............................................... .......................... 113
19.1.3 。闪存写入程序............................................... ........................... 114
19.2 。非易失性数据存储............................................. ................................ 114
19.3 。安全选项................................................ ............................................ 114
19.4 。闪存写入和擦除指引............................................. .................... 115
19.4.1 。 VDD维护和VDD监视器............................................ 116 ..
19.4.2 。 PSWE维护................................................ .............................. 116
19.4.3 。系统时钟................................................ ........................................ 117
20.电源管理模式............................................. .................................... 120
20.1 。空闲Mode....................................................................................................... 120
20.2 。停止模式..................................................................................................... 121
20.3 。挂起模式................................................ .............................................. 121
21.复位源...................................................................................................... 123
21.1 。上电复位.............................................. .............................................. 124
21.2 。掉电复位/ VDD监视器........................................... ........................ 125
21.3 。外部复位................................................ ............................................... 126
21.4 。时钟丢失检测器复位.............................................. ......................... 126
21.5 。比较器复位................................................ ....................................... 127
21.6 。 PCA看门狗复位.............................................. ........................... 127
21.7 。 FLASH错误复位............................................... ........................................... 127
21.8 。软件复位................................................ .............................................. 127
22.振荡器和时钟选择............................................ ............................. 129
22.1 。系统时钟选择............................................... .................................. 129
22.2 。可编程内部高频（ HF ）振荡器.............................. 131
22.3 。外部振荡器驱动电路.............................................. ....................... 133
22.3.1 。外部晶体示例............................................... ....................... 135
22.3.2 。外部RC示例............................................... ............................. 136
22.3.3 。外部电容举例............................................... ................... 137
23.端口输入/输出............................................ .................................................. ... 138
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