6.2.1 自由-运动 计数器 (frc) – h'ff92..................................................................126
6.2.2 输出 对比 寄存器 一个 和 b (ocra 和 ocrb) – h'ff94.......................127
6.2.3 输入 俘获 寄存器 一个 至 d (icra 至 icrd) –
h'ff98, h'ff9a, h'ff9c, h'ff9e.........................................................................127
6.2.4 计时器 中断 使能 寄存器 (tier) – h'ff90 .................................................129
6.2.5 计时器 控制/状态 寄存器 (tcsr) – h'ff91 ...................................................131
6.2.6 计时器 控制 寄存器 (tcr) – h'ff96 ................................................................134
6.2.7 计时器 输出 对比 控制 寄存器 (tocr) – h'ff97..................................136
6.3 cpu 接口 .......................................................................................................................137
6.4 运作 ..............................................................................................................................139
6.4.1 frc incrementation 定时....................................................................................139
6.4.2 输出 对比 定时..........................................................................................141
6.4.3 输入 俘获 定时 ..............................................................................................142
6.4.4 设置 的 frc overflow 标记 (ovf).....................................................................145
6.5 中断...............................................................................................................................146
6.6 样本 应用...............................................................................................................146
6.7 应用 注释 .................................................................................................................147
部分 7. 8-位 计时器
.........................................................................................................153
7.1 overview...............................................................................................................................153
7.1.1 特性....................................................................................................................153
7.1.2 块 图解.........................................................................................................153
7.1.3 输入 和 输出 管脚..............................................................................................154
7.1.4 寄存器 配置 ............................................................................................155
7.2 寄存器 描述............................................................................................................155
7.2.1 计时器 计数器 (tcnt) – h'ffc8 (tmr0), h'ffd0 (tmr1) ...............................155
7.2.2 时间 常量 寄存器 一个 和 b (tcora 和 tcorb) –
h'ffca 和 h'ffcb (tmr0), h'ffd2 和 h'ffd3 (tmr1) ..............................156
7.2.3 计时器 控制 寄存器 (tcr) – h'ffc8 (tmr0), h'ffd0 (tmr1) ....................156
7.2.4 计时器 控制/状态 寄存器 (tcsr) – h'ffc9 (tmr0), h'ffd1 (tmr1) .......158
7.3 运作 ..............................................................................................................................160
7.3.1 tcnt incrementation 定时.................................................................................160
7.3.2 对比 相一致 定时...........................................................................................161
7.3.3 外部 重置 的 tcnt ..........................................................................................163
7.3.4 设置 的 tcsr overflow 标记 ..............................................................................164
7.4 中断...............................................................................................................................165
7.5 样本 应用...............................................................................................................165
7.6 应用 注释 .................................................................................................................166
iii
: 点此下载
