Datasheet

Rev. 1.50 Sep. 18, 2007 Page xi of xxxiv
5.6 Subclock Generator..............................................................................................................86
5.6.1 Connecting 32.768-kHz Crystal Resonator............................................................. 86
5.6.2 Pin Connection when not Using Subclock.............................................................. 87
5.7 Prescaler............................................................................................................................... 87
5.7.1 Prescaler S .............................................................................................................. 87
5.7.2 Prescaler W............................................................................................................. 87
5.8 Usage Notes ......................................................................................................................... 88
5.8.1 Note on Resonators................................................................................................. 88
5.8.2 Notes on Board Design ........................................................................................... 88
Section 6 Power-Down Modes ............................................................................89
6.1 Register Descriptions...........................................................................................................90
6.1.1 System Control Register 1 (SYSCR1) .................................................................... 90
6.1.2 System Control Register 2 (SYSCR2) .................................................................... 93
6.1.3 System Control Register 3 (SYSCR3) .................................................................... 94
6.1.4 Module Standby Control Register 1 (MSTCR1) .................................................... 94
6.1.5 Module Standby Control Register 2 (MSTCR2) .................................................... 95
6.1.6 Module Standby Control Register 4 (MSTCR4) .................................................... 96
6.2 Mode Transitions and States of LSI..................................................................................... 97
6.2.1 Sleep Mode ........................................................................................................... 100
6.2.2 Standby Mode....................................................................................................... 100
6.2.3 Subsleep Mode...................................................................................................... 101
6.2.4 Subactive Mode .................................................................................................... 101
6.3 Operating Frequency in Active Mode................................................................................ 101
6.4 Direct Transition ................................................................................................................ 102
6.4.1 Direct Transition from Active Mode to Subactive Mode ..................................... 102
6.4.2 Direct Transition from Subactive Mode to Active Mode ..................................... 103
6.5 Module Standby Function.................................................................................................. 103
Section 7 ROM ..................................................................................................105
7.1 Block Configuration........................................................................................................... 106
7.2 Register Descriptions......................................................................................................... 107
7.2.1 Flash Memory Control Register 1 (FLMCR1)...................................................... 107
7.2.2 Flash Memory Control Register 2 (FLMCR2)...................................................... 108
7.2.3 Erase Block Register 1 (EBR1) ............................................................................ 109
7.2.4 Flash Memory Power Control Register (FLPWCR)............................................. 110
7.2.5 Flash Memory Enable Register (FENR)............................................................... 110
7.3 On-Board Programming Modes......................................................................................... 111
7.3.1 Boot Mode ............................................................................................................ 111
7.3.2 Programming/Erasing in User Programming Mode.............................................. 114