C8051F50x-F51x
12.2.1.3 。堆栈................................................. ........................................... 99
13.特殊功能寄存器............................................. .................................... 100
13.1 。 SFR分页................................................ .................................................. 。 100
13.2 。中断和SFR分页.............................................. .............................. 100
13.3 。 SFR页堆栈示例.............................................. ............................... 101
14.中断.............................................................................................................. 117
14.1 。 MCU中断源和载体............................................. ................. 117
14.1.1 。中断优先级................................................ .................................. 118
14.1.2 。中断延迟................................................ ................................... 118
14.2 。中断寄存器说明............................................... ....................... 120
14.3 。外部中断INT0和INT1 ............................................. .................... 126
15.闪光Memory....................................................................................................... 129
15.1 。闪存编程.............................................. .................... 129
15.1.1 。 FLASH锁定和关键功能............................................. ................. 129
15.1.2 。闪存擦除程序............................................... .......................... 129
15.1.3 。闪存写入程序............................................... ........................... 130
15.1.4 。闪存写入优化............................................... ........................ 130
15.2 。非易失性数据存储............................................. ................................ 131
15.3 。安全选项................................................ ............................................ 131
15.4 。闪存写入和擦除指引............................................. .................... 133
15.4.1. V
DD
维护和V
DD
监控................................................ 133
15.4.2 。 PSWE维护................................................ .............................. 133
15.4.3 。系统时钟................................................ ........................................ 134
16.电源管理模式............................................. .................................... 138
16.1 。空闲Mode....................................................................................................... 138
16.2 。停止模式..................................................................................................... 139
16.3 。挂起模式................................................ .............................................. 139
17.复位源...................................................................................................... 141
17.1 。上电复位.............................................. .............................................. 142
17.2 。掉电复位/ VDD监视器........................................... .......................... 142
17.3 。外部复位................................................ ............................................... 144
17.4 。时钟丢失检测器复位.............................................. ......................... 144
17.5 。比较器复位................................................ ....................................... 145
17.6 。 PCA看门狗复位.............................................. ........................... 145
17.7 。 FLASH错误复位............................................... ........................................... 145
17.8 。软件复位................................................ .............................................. 145
18.外部数据存储器接口和片内XRAM ....................................... 147
18.1 。访问XRAM ................................................ ........................................... 147
18.1.1 。 16位MOVX示例............................................. ............................. 147
18.1.2 。 8位MOVX示例............................................. ............................... 147
18.2 。配置外部存储器接口............................................. ...... 148
18.3 。端口Configuration.......................................................................................... 148
18.4 。复用和非复用选择............................................ ....... 153
18.4.1 。复用方式配置................................................ ...................... 153
18.4.2 。非复用配置.............................................. ................ 154
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修订版1.1