XMEGA A4

目录

产品特点..................................................................................................... 1

典型应用................................................ ................................ 1

1

2

3

订购信息................................................ ............................... 2

引脚排列/框图.............................................. ................................ 2

概述................................................. .................................................. 3

3.1Block图...........................................................................................................4

4

资源................................................. ................................................ 5

4.1Recommended阅读............................................... .............................................. 5

5

6

免责声明................................................. ................................................ 5

AVR CPU ................................................ .................................................. 6

6.1Features ....................................................................................................................6

6.2Overview ....................................................................................................................6

6.3Register文件..............................................................................................................7

6.4ALU - 算术逻辑单元............................................ ........................................... 7

6.5Program流............................................................................................................7

7

回忆................................................. ................................................. 8

7.1Features ....................................................................................................................8

7.2Overview ....................................................................................................................8

7.3In系统内可编程Flash程序存储器.......................................... ......... 8

7.4Data记忆...........................................................................................................10

7.5Calibration行.......................................................................................................11

7.6User签名中.............................................. .................................................. 11

7.7Flash和EEPROM页面大小............................................ ................................... 12

8

DMAC - 直接存储器访问控制器.......................................... 13

8.1Features ..................................................................................................................13

8.2Overview ..................................................................................................................13

9

事件系统................................................ .......................................... 14

9.1Features ..................................................................................................................14

9.2Overview ..................................................................................................................14

10系统时钟及时钟选项............................................ ............. 16

10.1Features ................................................................................................................16

i

8069C–AVR–06/08