
Rev. 5.0, 09/04, page xvi of xviii
18.8.1 Usage Notes.........................................................................................................636
PROM Mode.....................................................................................................................637
18.9.1 Pin Arrangement of the Socket Adapter..............................................................637
18.9.2 PROM Mode Operation.......................................................................................639
18.9.3 Memory-Read Mode............................................................................................640
18.9.4 Auto-Program Mode............................................................................................641
18.9.5 Auto-Erase Mode.................................................................................................641
18.9.6 Status-Read Mode................................................................................................642
18.9.7 Status Polling.......................................................................................................642
18.9.8 Time Taken in Transition to PROM Mode..........................................................643
18.9.9 Notes on Using PROM Mode..............................................................................643
18.10 Further Information...........................................................................................................644
18.10.1 Serial Communication Interface Specification for Boot Mode............................644
18.10.2 AC Characteristics and Timing in Writer Mode..................................................670
18.10.3 Procedure Program and Storable Area for Programming Data............................676
18.9
Section 19 Clock Pulse Generator.....................................................................687
19.1
Overview...........................................................................................................................687
19.1.1 Block Diagram.....................................................................................................687
19.2
Oscillator Circuit...............................................................................................................688
19.2.1 Connecting a Crystal Resonator...........................................................................688
19.2.2 External Clock Input............................................................................................690
19.3
Duty Adjustment Circuit...................................................................................................692
19.4
Prescalers ..........................................................................................................................692
19.5
Frequency Divider ............................................................................................................692
19.5.1 Register Configuration.........................................................................................693
19.5.2 Division Control Register (DIVCR) ....................................................................693
19.5.3 Usage Notes.........................................................................................................694
Section 20 Power-Down State...........................................................................695
20.1
Overview...........................................................................................................................695
20.2
Register Configuration......................................................................................................697
20.2.1 System Control Register (SYSCR)......................................................................697
20.2.2 Module Standby Control Register H (MSTCRH)................................................699
20.2.3 Module Standby Control Register L (MSTCRL).................................................700
20.3
Sleep Mode.......................................................................................................................702
20.3.1 Transition to Sleep Mode.....................................................................................702
20.3.2 Exit from Sleep Mode..........................................................................................702
20.4
Software Standby Mode....................................................................................................703
20.4.1 Transition to Software Standby Mode.................................................................703
20.4.2 Exit from Software Standby Mode......................................................................703
20.4.3 Selection of Waiting Time for Exit from Software Standby Mode .....................704
20.4.4 Sample Application of Software Standby Mode..................................................705