第6章并行接口握手

....................................................................... 113

6.1

Overview............................................................................................................................... 113

6.1.1 Features.................................................................................................................... 113

6.1.2座Diagram......................................................................................................... 114

6.1.3输入和输出引脚........................................... .................................................. 。 115

6.1.4寄存器配置............................................. ............................................... 115

注册Descriptions............................................................................................................ 115

6.2.1端口3的数据方向寄存器（ P3DDR ） ....................................... ......................... 115

6.2.2端口3数据寄存器（ P3DR ） ........................................ ........................................... 116

6.2.3握手控制/状态寄存器（ HCSR ） ....................................... .................... 116

手术.............................................................................................................................. 118

输出选通脉冲信号6.3.1输出时序......................................... ......................... 118

6.3.2 BUSY信号输出时序........................................... .......................................... 119

6.3.3操作软件在待机模式.......................................... ........................... 119

6.3.4示例应用程序............................................. .................................................. 120 ..

6.3.5 Interrupts.................................................................................................................. 121

6.2

6.3

第7章16位自由运行定时器

.............................................................................. 123

7.1

Overview............................................................................................................................... 123

7.1.1 Features.................................................................................................................... 123

7.1.2座Diagram......................................................................................................... 123

7.1.3输入和输出引脚........................................... .................................................. 。 125

7.1.4寄存器配置............................................. ............................................... 125

注册Descriptions............................................................................................................ 126

7.2.1自由运行计数器（ FRC ） - H'FF92 .................................... ............................. 126

7.2.2输出比较寄存器A和B

（ OCRA和OCRB ） - H'FF94和H'FF96 ..................................... ....................... 126

7.2.3输入捕捉寄存器（ ICR ） - H'FF98 ..................................... ............................. 127

7.2.4定时器控制寄存器（ TCR ） - H'FF90 ..................................... ........................... 128

7.2.5定时器控制/状态寄存器（ TCSR ） - H'FF91 ................................... ................ 130

7.2.6 FRT噪声消除控制寄存器（ FNCR ） - H'FFFF ................................... ... 133

CPU接口....................................................................................................................... 133

手术.............................................................................................................................. 136

7.4.1 FRC增量方向时序............................................ ........................................ 136

7.4.2输出比较定时............................................ .............................................. 138

7.4.3 FRC清除定时............................................ .................................................. ..... 138

7.4.4输入捕捉时序............................................ .................................................. 139

7.4.5定时的输入捕捉标志（ ICF ）设置...................................... ...................... 140

7.2

7.3

7.4

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