9.1
9.2
9.3
CHAPTER 10 I/O PORTS ................................................................................................ 169
10.1
I/O Ports .......................................................................................................................................... 170
10.2
I/O Port Registers ........................................................................................................................... 171
10.2.1
Port Data Register ..................................................................................................................... 172
10.2.2
Data Direction Register ............................................................................................................. 174
10.2.3
10.2.4
Input Level Select Register ........................................................................................................ 176
11.1
Outline of Time-base Timer ............................................................................................................ 178
11.2
11.3
12.1
Outline of Watchdog Timer ............................................................................................................. 184
12.2
Watchdog Timer Operation ............................................................................................................. 187
13.1
Outline of 16-Bit I/O Timer .............................................................................................................. 192
13.2
16-Bit I/O Timer Registers .............................................................................................................. 194
13.3
16-bit Free-run Timer ...................................................................................................................... 196
13.3.1
Data Register ............................................................................................................................. 197
13.3.2
Control Status Register ............................................................................................................. 198
13.3.3
13.4
Output Compare ............................................................................................................................. 203
13.4.1
Output Compare Register .......................................................................................................... 204
13.4.2
13.4.3
13.5
Input Capture .................................................................................................................................. 215
13.5.1
13.5.2
14.1
14.2
14.2.1
14.2.2
14.3
14.4
14.5
14.6
Counter Operation State ................................................................................................................. 235
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