Section 8 I/O Ports............................................................................................................. 133
8.1 Overview............................................................................................................................ 133
8.2 Port 1.................................................................................................................................. 135
8.2.1 Overview............................................................................................................... 135
8.2.2 Register Configuration and Description ............................................................... 135
8.2.3 Pin Functions ........................................................................................................ 140
8.2.4 Pin States .............................................................................................................. 142
8.2.5 MOS Input Pull-Up............................................................................................... 142
8.3 Port 3.................................................................................................................................. 143
8.3.1 Overview............................................................................................................... 143
8.3.2 Register Configuration and Description ............................................................... 143
8.3.3 Pin Functions ........................................................................................................ 147
8.3.4 Pin States .............................................................................................................. 149
8.3.5 MOS Input Pull-Up............................................................................................... 149
8.4 Port 4.................................................................................................................................. 150
8.4.1 Overview............................................................................................................... 150
8.4.2 Register Configuration and Description ............................................................... 150
8.4.3 Pin Functions ........................................................................................................ 151
8.4.4 Pin States............................................................................................................... 152
8.5 Port 5.................................................................................................................................. 153
8.5.1 Overview............................................................................................................... 153
8.5.2 Register Configuration and Description ............................................................... 153
8.5.3 Pin Functions ........................................................................................................ 156
8.5.4 Pin States .............................................................................................................. 156
8.5.5 MOS Input Pull-Up............................................................................................... 157
8.6 Port 6.................................................................................................................................. 157
8.6.1 Overview............................................................................................................... 157
8.6.2 Register Configuration and Description ............................................................... 158
8.6.3 Pin Functions ........................................................................................................ 159
8.6.4 Pin States .............................................................................................................. 159
8.6.5 MOS Input Pull-Up............................................................................................... 160
8.7 Port 7.................................................................................................................................. 160
8.7.1 Overview............................................................................................................... 160
8.7.2 Register Configuration and Description ............................................................... 161
8.7.3 Pin Functions ........................................................................................................ 162
8.7.4 Pin States .............................................................................................................. 162
8.8 Port 8.................................................................................................................................. 163
8.8.1 Overview............................................................................................................... 163
8.8.2 Register Configuration and Description ............................................................... 163
8.8.3 Pin Functions ........................................................................................................ 165
8.8.4 Pin States .............................................................................................................. 166
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