: .
a
键盘接口..................................................................................................................................................41
模数转换器（ADC） ..............................................................................................................................42
RI信号线动作...........................................................................................................................................43
网络状态指示灯......................................................................................................................................44
通用输入输出(GPIO)..............................................................................................................................44
外部复位输入..........................................................................................................................................45
PWM.........................................................................................................................................................45
I2C总线.....................................................................................................................................................46
4 硬件设计手册
表格索引
表 1: 相关文档 ................................................................................................................................................................ 8
表 2: 术语和解释 ...........................................................................................................................................
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