3.7.4
3.7.5
3.7.6
Notes on Standby Mode .............................................................................................................. 70
3.8
Memory Access Mode ...................................................................................................................... 72
I/O PORTS .................................................................................................. 75
4.1
Overview of I/O Ports ........................................................................................................................ 76
4.2
Port 0 ................................................................................................................................................ 78
4.2.1
4.2.2
4.3
Port 3 ................................................................................................................................................ 84
4.3.1
4.3.2
4.4
Port 4 ................................................................................................................................................ 90
4.4.1
Registers of Port 4 (PDR4) .......................................................................................................... 92
4.4.2
4.5
Port 5 ................................................................................................................................................ 94
4.5.1
4.5.2
4.6
Port 6 .............................................................................................................................................. 100
4.6.1
4.6.2
4.7
Port 7 .............................................................................................................................................. 107
4.7.1
4.7.2
4.8
TIME-BASE TIMER .................................................................................. 115
5.1
Overview of Time-base Timer ......................................................................................................... 116
5.2
5.3
5.4
5.5
5.6
5.7
WATCHDOG TIMER ................................................................................ 127
6.1
Overview of Watchdog Timer ......................................................................................................... 128
6.2
6.3
6.4
6.5
6.6
vi