XMEGA D4

19 TWI - 双线接口........................................... ............................ 35

19.1

19.2

产品特点..........................................................................................................35

概观..........................................................................................................35

20 SPI - 串行外设接口............................................ ................ 36

20.1

20.2

产品特点..........................................................................................................36

概观..........................................................................................................36

21 USART ..................................................................................................... 37

21.1

21.2

产品特点..........................................................................................................37

概观..........................................................................................................37

22 IRCOM - 红外通信模块............................................ ........ 38

22.1

22.2

产品特点..........................................................................................................38

概观..........................................................................................................38

23 ADC - 12位模数转换器........................................ ..... 39

23.1

23.2

产品特点..........................................................................................................39

概观..........................................................................................................39

24交流 - 模拟比较器............................................. .......................... 41

24.1

24.2

24.3

24.4

产品特点..........................................................................................................41

概观..........................................................................................................41

输入选择................................................ ................................................. 43

窗口

功能................................................. ............................................ 43

25 OCD - 片上调试........................................... ................................. 44

25.1

25.2

产品特点..........................................................................................................44

概观..........................................................................................................44

26 PDI - 编程和调试接口........................................... .......... 45

26.1

26.2

26.3

产品特点..........................................................................................................45

概观..........................................................................................................45

PDI - 编程和调试接口............................................ .................... 45

引脚27和引脚功能............................................. ......................... 46

27.1

27.2

备用引脚功能说明.............................................. .................. 46

管脚功能复用............................................... .................................... 48

28外设模块地址地图............................................. ............. 50

29指令集摘要.............................................. ........................ 51

iii

8135G–AVR–08/10