C8051F55x/56x/57x
12.2 。中断和SFR分页.............................................. ................................ 95
12.3 。 SFR页堆栈示例.............................................. ................................. 97
13.中断.............................................................................................................. 112
13.1 。 MCU中断源和载体............................................. ................. 112
13.1.1 。中断优先级................................................ .................................. 113
13.1.2 。中断延迟................................................ ................................... 113
13.2 。中断寄存器说明............................................... ....................... 115
13.3 。外部中断INT0和INT1 ............................................. .................... 122
14.闪光Memory....................................................................................................... 124
14.1 。闪存编程.............................................. .................... 124
14.1.1 。 FLASH锁定和关键功能............................................. ................. 124
14.1.2 。闪存擦除程序............................................... .......................... 124
14.1.3 。闪存写入程序............................................... ........................... 125
14.1.4 。闪存写入优化............................................... ........................ 125
14.2 。非易失性数据存储............................................. ................................ 126
14.3 。安全选项................................................ ............................................ 126
14.4 。闪存写入和擦除指引............................................. .................... 128
14.4.1. V
DD
维护和V
DD
监控................................................ 128
14.4.2 。 PSWE维护................................................ .............................. 128
14.4.3 。系统时钟................................................ ........................................ 129
15.电源管理模式............................................. .................................... 133
15.1 。空闲Mode....................................................................................................... 133
15.2 。停止模式..................................................................................................... 134
15.3 。挂起模式................................................ .............................................. 134
16.复位源...................................................................................................... 136
16.1 。上电复位.............................................. .............................................. 137
16.2 。掉电复位/ VDD监视器........................................... .......................... 137
16.3 。外部复位................................................ ............................................... 139
16.4 。时钟丢失检测器复位.............................................. ......................... 139
16.5 。比较器复位................................................ ....................................... 140
16.6 。 PCA看门狗复位.............................................. ........................... 140
16.7 。 FLASH错误复位............................................... ........................................... 140
16.8 。软件复位................................................ .............................................. 140
17.外部数据存储器接口和片内XRAM ....................................... 142
17.1 。访问XRAM ................................................ ........................................... 142
17.1.1 。 16位MOVX示例............................................. ............................. 142
17.1.2 。 8位MOVX示例............................................. ............................... 142
17.2 。配置外部存储器接口............................................. ...... 143
17.3 。端口Configuration.......................................................................................... 143
17.4 。复用模式................................................ .......................................... 147
17.5 。内存模式选择............................................... ................................. 148
17.5.1 。内部XRAM只有............................................... ............................... 148
17.5.2 。拆分模式不带块选择............................................. ................ 148
17.5.3 。拆分模式与银行选择............................................. ..................... 149
17.5.4 。仅外部................................................ ......................................... 149
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修订版1.1