部分 8. pwm 计时器
........................................................................................................171
8.1 overview...............................................................................................................................171
8.1.1 特性....................................................................................................................171
8.1.2 块 图解.........................................................................................................171
8.1.3 输入 和 输出 管脚..............................................................................................172
8.1.4 寄存器 配置 ............................................................................................172
8.2 寄存器 描述............................................................................................................172
8.2.1 计时器 计数器 (tcnt) – h'ffa2 (pwm0), h'ffa6 (pwm1)..............................172
8.2.2 职责 寄存器 (dtr) – h'ffa1 (pwm0), h'ffa5 (pwm1) .................................173
8.2.3 计时器 控制 寄存器 (tcr) – h'ffa0 (pwm0), h'ffa4 (pwm1)...................173
8.3 运作 ..............................................................................................................................175
8.3.1 计时器 incrementation ..............................................................................................175
8.3.2 pwm 运作.......................................................................................................176
8.4 应用 注释 .................................................................................................................177
部分 9. 串行 交流 接口
.....................................................................179
9.1 overview...............................................................................................................................179
9.1.1 特性....................................................................................................................179
9.1.2 块 图解.........................................................................................................180
9.1.3 输入 和 输出 管脚..............................................................................................180
9.1.4 寄存器 配置 ............................................................................................181
9.2 寄存器 描述............................................................................................................181
9.2.1 receive 变换 寄存器 (rsr) ..................................................................................181
9.2.2 receive 数据 寄存器 (rdr) – h'ffdd................................................................182
9.2.3 transmit 变换 寄存器 (tsr).................................................................................182
9.2.4 transmit 数据 寄存器 (tdr) – h'ffdb...............................................................182
9.2.5 串行 模式 寄存器 (smr) – h'ffd8 ..................................................................183
9.2.6 串行 控制 寄存器 (scr) – h'ffda ...............................................................185
9.2.7 串行 状态 寄存器 (ssr) – h'ffdc ..................................................................187
9.2.8 位 比率 寄存器 (brr) – h'ffd9 .........................................................................189
9.3 运作 ..............................................................................................................................193
9.3.1 Overview .................................................................................................................193
9.3.2 异步的 模式................................................................................................194
9.3.3 同步的 模式..................................................................................................198
9.4 中断...............................................................................................................................202
9.5 应用 注释 .................................................................................................................203
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