ix
15.7.5 Erase-Verify
Mode................................................................................................ 465
15.8 Protection............................................................................................................................ 467
15.8.1 Hardware
Protection.............................................................................................. 467
15.8.2 Software
Protection ............................................................................................... 468
15.8.3 Error
Protection ..................................................................................................... 469
15.8.4 NMI Input Disable Conditions.............................................................................. 471
15.9 Flash Memory Emulation in RAM..................................................................................... 472
15.10 Flash Memory PROM Mode.............................................................................................. 474
15.10.1 Socket Adapters and Memory Map ...................................................................... 474
15.10.2 Notes on Use of PROM Mode .............................................................................. 475
15.11 Notes on Flash Memory Programming/Erasing ................................................................. 476
15.12 Overview of Mask ROM.................................................................................................... 482
15.12.1 Block Diagram ...................................................................................................... 482
15.13 Notes on Ordering Mask ROM Version Chips .................................................................. 483
15.14 Notes when Converting the F-ZTAT Application Software to the Mask-ROM Versions 484
Section 16 Clock Pulse Generator
................................................................................... 485
16.1
Overview ............................................................................................................................ 485
16.1.1 Block Diagram ...................................................................................................... 486
16.2
Oscillator Circuit ................................................................................................................ 487
16.2.1 Connecting a Crystal Resonator............................................................................ 487
16.2.2 External Clock Input ............................................................................................. 489
16.3
Duty Adjustment Circuit .................................................................................................... 492
16.4
Prescalers............................................................................................................................ 492
16.5
Frequency Divider.............................................................................................................. 492
16.5.1 Register Configuration .......................................................................................... 492
16.5.2 Division Control Register (DIVCR) ..................................................................... 493
16.5.3 Usage Notes .......................................................................................................... 493
Section 17 Power-Down State
.......................................................................................... 495
17.1
Overview ............................................................................................................................ 495
17.2 Register
Configuration ....................................................................................................... 497
17.2.1 System Control Register (SYSCR) ....................................................................... 497
17.2.2 Module Standby Control Register (MSTCR)........................................................ 499
17.3 Sleep
Mode ......................................................................................................................... 501
17.3.1 Transition to Sleep Mode ...................................................................................... 501
17.3.2 Exit from Sleep Mode ........................................................................................... 501
17.4 Software Standby Mode ..................................................................................................... 502
17.4.1 Transition to Software Standby Mode .................................................................. 502
17.4.2 Exit from Software Standby Mode........................................................................ 502
17.4.3 Selection of Oscillator Waiting Time after Exit from Software Standby Mode ... 503
17.4.4 Sample Application of Software Standby Mode................................................... 504
17.4.5 Usage
Note ............................................................................................................ 504