HD64F2149 Datasheet, PDF (31/1035 Pages) Renesas Technology Corp – Hitachi 16-Bit Single-Chip Microcomputer

22.6 On-Board Programming Modes ........................................................................................ 672
22.6.1 Boot Mode............................................................................................................ 673
22.6.2 User Program Mode ............................................................................................. 678
22.7 Programming/Erasing Flash Memory................................................................................ 679
22.7.1 Program Mode...................................................................................................... 679
22.7.2 Program-Verify Mode .......................................................................................... 680
22.7.3 Erase Mode........................................................................................................... 682
22.7.4 Erase-Verify Mode ............................................................................................... 682
22.8 Flash Memory Protection .................................................................................................. 684
22.8.1 Hardware Protection............................................................................................. 684
22.8.2 Software Protection .............................................................................................. 684
22.8.3 Error Protection .................................................................................................... 685
22.9 Interrupt Handling when Programming/Erasing Flash Memory ....................................... 686
22.10 Flash Memory Programmer Mode .................................................................................... 687
22.10.1 Programmer Mode Setting ................................................................................... 687
22.10.2 Socket Adapters and Memory Map...................................................................... 688
22.10.3 Writer Mode Operation ........................................................................................ 688
22.10.4 Memory Read Mode............................................................................................. 690
22.10.5 Auto-Program Mode ............................................................................................ 693
22.10.6 Auto-Erase Mode.................................................................................................. 694
22.10.7 Status Read Mode................................................................................................. 696
22.10.8 Status Polling........................................................................................................ 697
22.10.9 Writer Mode Transition Time .............................................................................. 697
22.10.10 Notes On Memory Programming ....................................................................... 698
22.11 Flash Memory Programming and Erasing Precautions ..................................................... 698
Section 23 Clock Pulse Generator .................................................................................. 701
23.1 Overview............................................................................................................................ 701
23.1.1 Block Diagram...................................................................................................... 701
23.1.2 Register Configuration ......................................................................................... 701
23.2 Register Descriptions......................................................................................................... 702
23.2.1 Standby Control Register (SBYCR) .................................................................... 702
23.2.2 Low-Power Control Register (LPWRCR)............................................................ 703
23.3 Oscillator............................................................................................................................ 703
23.3.1 Connecting a Crystal Resonator ........................................................................... 703
23.3.2 External Clock Input ............................................................................................ 705
23.4 Duty Adjustment Circuit.................................................................................................... 708
23.5 Medium-Speed Clock Divider........................................................................................... 708
23.6 Bus Master Clock Selection Circuit .................................................................................. 708
23.7 Subclock Input Circuit....................................................................................................... 708
23.8 Subclock Waveform Shaping Circuit................................................................................ 709
23.9 Clock Selection Circuit...................................................................................................... 709
23.10 X1 and X2 Pins.................................................................................................................. 710
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