目录

目录

功能................................................. ................................................ 1

说明................................................. ........................................... 1

框图................................................ ....................................... 3

SFR映射................................................ ......................................... 4

引脚配置................................................ ................................ 9

端口类型................................................ ........................................... 13

振荡器................................................. ............................................ 14

注册............................................................................................................ 14

功能框图............................................... ................................... 15

增强功能................................................ ............................. 16

X2 Feature.......................................................................................................... 16

双数据指针寄存器（ DPTR ） ........................................... ........ 20

扩展存储器（ XRAM ） ............................................. ......................... 23

注册............................................................................................................ 25

定时器2 ................................................ ................................................. 26

自动重载模式.............................................. ................................................. 26

可编程时钟输出模式............................................. ............................. 27

注册............................................................................................................ 29

可编程计数器阵列（ PCA ） ............................................ ..... 31

注册............................................................................................................

PCA捕捉模式............................................... .............................................

16位软件定时器/比较模式.......................................... ....................

高速输出模式............................................. ......................................

脉宽调制器方式.............................................. ...............................

PCA看门狗定时器............................................... ..........................................

33

39

40

41

42

42

串行I / O端口............................................. ......................................... 44

帧错误检测............................................... ...................................... 44

自动地址识别............................................... .......................... 45

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