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19内存控制器（ MC ） ............................................ .......................... 121
19.1-概述...........................................................................................................121
19.2-框图...................................................................................................121
19.3-功能说明.............................................. ......................................... 122
19.4-内存控制器（ MC ）用户界面......................................... ................... 126
20嵌入式Flash控制器（ EFC ） ........................................... .......... 131
20.1-
概观..........................................................................................................131
20.2-功能说明.............................................. ......................................... 131
20.3-嵌入式Flash控制器（ EFC ）用户界面........................................ ... 141
21快速Flash编程接口（ FFPI ） .......................................... 147
21.1-概述...........................................................................................................147
21.2-并行快速Flash编程............................................ .......................... 147
21.3-串行快速Flash编程............................................ ............................. 156
22 AT91SAM引导..............................................计划....................... 163
22.1-概述...........................................................................................................163
22.2-流程图....................................................................................................163
22.3-设备初始化.............................................. ............................................. 163
22.4- SAM -BA启动....................................................................................................164
22.5-硬件和软件约束............................................ ..................... 168
23外设DMA控制器（ PDC ） ........................................... ............ 169
23.1-概述...........................................................................................................169
23.2-框图...................................................................................................169
23.3-功能说明.............................................. ......................................... 170
23.4-外设DMA控制器（ PDC ）用户界面........................................ ...... 172
24高级中断控制器（ AIC ） ........................................... 179 .......
24.1-概述...........................................................................................................179
24.2-框图...................................................................................................179
24.3-应用框图............................................. ................................... 180
24.4- AIC详细框图............................................ .................................. 180
24.5- I / O线说明........................................... ................................................ 180
24.6-产品相关.............................................. ........................................ 181
24.7-功能说明.............................................. ......................................... 182
24.8-高级中断控制器（ AIC ）用户界面........................................ ..194
25时钟发生器............................................... .................................... 205
iv
AT91SAM7XC512 /一百二十八分之二百五十六初步
6209F–ATARM–17-Feb-09
