Datasheet

Table Of Contents
Rev. 2.00 Jul. 04, 2007 Page xiv of xl
9.9.2 Port Control Register A (PCRA) .......................................................................... 187
9.9.3 Pin Functions ........................................................................................................ 188
9.10 Port B................................................................................................................................. 190
9.10.1 Port Data Register B (PDRB) ............................................................................... 190
9.10.2 Port Mode Register B (PMRB)............................................................................. 191
9.10.3 Pin Functions ........................................................................................................ 192
9.11 Port C................................................................................................................................. 194
9.11.1 Port Data Register C (PDRC) ............................................................................... 194
9.11.2 Port Control Register C (PCRC)........................................................................... 195
9.11.3 Pin Functions ........................................................................................................ 195
9.12 Port E ................................................................................................................................. 196
9.12.1 Port Data Register E (PDRE)................................................................................ 196
9.12.2 Port Control Register E (PCRE) ........................................................................... 197
9.12.3 Port Mode Register E (PMRE) ............................................................................. 197
9.12.4 Pin Functions ........................................................................................................ 198
9.13 Port F ................................................................................................................................. 202
9.13.1 Port Data Register F (PDRF) ................................................................................ 202
9.13.2 Port Control Register F (PCRF)............................................................................ 203
9.13.3 Port Mode Register F (PMRF).............................................................................. 203
9.13.4 Pin Functions ........................................................................................................ 204
9.14 Input/Output Data Inversion .............................................................................................. 206
9.14.1 Serial Port Control Register, Serial Port Control Register 2 (SPCR, SPCR2)...... 206
9.15 Port Function Switch.......................................................................................................... 209
9.15.1 Port Function Control Register (PFCR)................................................................ 209
9.16 Usage Notes ....................................................................................................................... 210
9.16.1 How to Handle Unused Pin .................................................................................. 210
9.16.2 Input Characteristics Difference due to Pin Function ........................................... 210
Section 10 Realtime Clock (RTC).....................................................................211
10.1 Features.............................................................................................................................. 211
10.2 Input/Output Pin ................................................................................................................ 212
10.3 Register Descriptions......................................................................................................... 212
10.3.1 Second Data Register/Free Running Counter Data Register (RSECDR) ............. 213
10.3.2 Minute Data Register (RMINDR) ........................................................................ 214
10.3.3 Hour Data Register (RHRDR) .............................................................................. 215
10.3.4 Day-of-Week Data Register (RWKDR) ............................................................... 216
10.3.5 RTC Control Register 1 (RTCCR1) ..................................................................... 217
10.3.6 RTC Control Register 2 (RTCCR2) ..................................................................... 219
10.3.7 Clock Source Select Register (RTCCSR)............................................................. 220
10.3.8 RTC Interrupt Flag Register (RTCFLG) .............................................................. 221