21.3 On-Board Programming Modes......................................................................................... 513
21.3.1 Boot Mode ............................................................................................................ 513
21.3.2 User Programming Mode...................................................................................... 519
21.4 Programming/Erasing Flash Memory................................................................................ 520
21.4.1 Program Mode ...................................................................................................... 520
21.4.2 Program-Verify Mode .......................................................................................... 521
21.4.3 Erase Mode ........................................................................................................... 523
21.4.4 Erase-Verify Mode................................................................................................ 523
21.4.5 Protect Modes ....................................................................................................... 525
21.4.6 Interrupt Handling during Flash Memory Programming and Erasing.................. 527
21.5 Flash Memory Writer Mode (H8/3437SF) ........................................................................ 528
21.5.1 Writer Mode Setting ............................................................................................. 528
21.5.2 Socket Adapter and Memory Map........................................................................ 528
21.5.3 Operation in Writer Mode .................................................................................... 529
21.6 Flash Memory Programming and Erasing Precautions...................................................... 540
Section 22 Power-Down State.......................................................................................... 543
22.1 Overview............................................................................................................................ 543
22.1.1 System Control Register (SYSCR)....................................................................... 544
22.2 Sleep Mode ........................................................................................................................ 546
22.2.1 Transition to Sleep Mode...................................................................................... 546
22.2.2 Exit from Sleep Mode........................................................................................... 546
22.3 Software Standby Mode..................................................................................................... 547
22.3.1 Transition to Software Standby Mode.................................................................. 547
22.3.2 Exit from Software Standby Mode ....................................................................... 547
22.3.3 Clock Settling Time for Exit from Software Standby Mode................................ 548
22.3.4 Sample Application of Software Standby Mode .................................................. 549
22.3.5 Application Note................................................................................................... 550
22.4 Hardware Standby Mode ................................................................................................... 551
22.4.1 Transition to Hardware Standby Mode................................................................. 551
22.4.2 Recovery from Hardware Standby Mode ............................................................. 551
22.4.3 Timing Relationships............................................................................................ 552
Section 23 Electrical Specifications................................................................................ 553
23.1 Absolute Maximum Ratings .............................................................................................. 553
23.2 Electrical Characteristics.................................................................................................... 554
23.2.1 DC Characteristics................................................................................................ 554
23.2.2 AC Characteristics................................................................................................ 567
23.2.3 A/D Converter Characteristics.............................................................................. 575
23.2.4 D/A Converter Characteristics.............................................................................. 576
23.2.5 Flash Memory Characteristics (H8/3437SF Only) ............................................... 577
23.3 Absolute Maximum Ratings (H8/3437SF Low-Voltage Version).................................... 579
23.4 Electrical Characteristics (H8/3437SF Low-Voltage Version).......................................... 580
xi
HITACHI [ HITACHI SEMICONDUCTOR ]
