AT32UC3A

25.1

产品特点..............................................................................................................259

25.2Overview ..............................................................................................................259

25.3Block图.....................................................................................................260

25.4Application框图.............................................. ..................................... 260

25.5I / O线说明............................................ ............................................... 261

25.6Product依赖............................................... ......................................... 261

25.7Functional说明............................................... .......................................... 261

25.8SSC应用实例.............................................. .................................... 273

25.9User接口......................................................................................................275

26通用同步/异步接收器/发送器（ USART ） 299

26.1Features ..............................................................................................................299

26.2Overview ..............................................................................................................299

26.3Block图.....................................................................................................300

26.4Application框图.............................................. ..................................... 301

26.5I / O线说明............................................ .............................................. 302

26.6Product依赖............................................... ......................................... 303

26.7Functional说明............................................... .......................................... 304

26.8Universal同步/异步接收器/发送器（ USART ）用户界面339

27静态存储控制器（ SMC ） ........................................... .............. 366

27.1

产品特点..............................................................................................................366

27.2Overview ..............................................................................................................366

27.3Block图.....................................................................................................367

27.4I / O线说明............................................ ............................................... 367

27.5Product依赖............................................... ......................................... 368

27.6Functionnal说明............................................... ........................................ 368

27.7User接口......................................................................................................403

28 SDRAM控制器（ SDRAMC ） ............................................ ................. 410

28.1Features ..............................................................................................................410

28.2Description ...........................................................................................................410

28.3Block图.....................................................................................................411

28.4I / O线说明............................................ ............................................... 411

28.5Application例............................................... ............................................. 412

28.6Product依赖............................................... ......................................... 415

28.7Functional说明............................................... .......................................... 417

28.8SDRAM控制器用户界面............................................. .......................... 424

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32058H–AVR32–03/09