目录

信号说明................................................ .............................................. 91

功能说明................................................ ........................................ 93

双线接口（ TWI ） ............................................ ...................... 100

描述........................................................................................................ 102

笔记................................................................................................................ 105

注册........................................................................................................... 115

USB控制器................................................ .................................. 117

描述....................................................................................................... 117

配置................................................. .................................................. 。 120

读/写数据FIFO ............................................. ......................................... 122

散装/中断交易.............................................. ................................ 123

控制交易................................................ ........................................ 127

同步交易................................................ ................................. 128

Miscellaneous.................................................................................................... 130

暂停/恢复管理.............................................. .......................... 131

分离模拟................................................ ............................................. 134

USB中断系统............................................... ........................................ 134

USB寄存器................................................ .................................................. 。 137

复位................................................. ................................................. 149

Introduction....................................................................................................... 149

复位输入....................................................................................................... 149

复位输出................................................ .................................................. 150 ..

电源监视器................................................ ................................... 151

描述....................................................................................................... 151

电源管理................................................ .......................... 153

空闲Mode.......................................................................................................... 153

掉电模式.............................................. ............................................. 153

注册.......................................................................................................... 155

硬件看门狗定时器............................................... ............... 156

使用WDT ............................................... .................................................. 156

WDT在掉电和空闲........................................... ........................ 157

ONCE模式（片上仿真） ........................................... ........ 158

降低EMI模式............................................... ............................ 159

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