SH7052 datasheet(22/919 Pages) RENESAS

22 / 919 page

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20.2

Overview............................................................................................................................ 688

20.2.1 Block Diagram...................................................................................................... 688

20.2.2 Mode Transitions.................................................................................................. 689

20.2.3 On-Board Programming Modes ........................................................................... 690

20.2.4 Flash Memory Emulation in RAM....................................................................... 692

20.2.5 Differences between Boot Mode and User Program Mode.................................. 693

20.2.6 Block Configuration ............................................................................................. 694

20.3

Pin Configuration .............................................................................................................. 694

20.4

Register Configuration ...................................................................................................... 695

20.5

Register Descriptions......................................................................................................... 696

20.5.1 Flash Memory Control Register 1 (FLMCR1) ..................................................... 696

20.5.2 Flash Memory Control Register 2 (FLMCR2) ..................................................... 698

20.5.3 Erase Block Register 1 (EBR1)............................................................................ 699

20.5.4 Erase Block Register 2 (EBR2)............................................................................ 699

20.5.5 RAM Emulation Register (RAMER) ................................................................... 701

20.6

On-Board Programming Modes ........................................................................................ 703

20.6.1 Boot Mode............................................................................................................ 703

20.6.2 User Program Mode ............................................................................................. 708

20.7

Programming/Erasing Flash Memory................................................................................ 708

20.7.1 Program Mode...................................................................................................... 709

20.7.2 Program-Verify Mode .......................................................................................... 710

20.7.3 Erase Mode ........................................................................................................... 713

20.7.4 Erase-Verify Mode ............................................................................................... 714

20.8

Protection........................................................................................................................... 717

20.8.1 Hardware Protection ............................................................................................. 717

20.8.2 Software Protection .............................................................................................. 718

20.8.3 Error Protection .................................................................................................... 718

20.9

Flash Memory Emulation in RAM.................................................................................... 720

20.10 Note on Flash Memory Programming/Erasing.................................................................. 722

20.11 Flash Memory Programmer Mode .................................................................................... 722

20.11.1 Socket Adapter Pin Correspondence Diagram ..................................................... 723

20.11.2 Programmer Mode Operation............................................................................... 725

20.11.3 Memory Read Mode............................................................................................. 726

20.11.4 Auto-Program Mode ............................................................................................ 729

20.11.5 Auto-Erase Mode.................................................................................................. 731

20.11.6 Status Read Mode................................................................................................. 733

20.11.7 Status Polling........................................................................................................ 734

20.11.8 Programmer Mode Transition Time ..................................................................... 734

20.11.9 Notes on Memory Programming.......................................................................... 735

Section 21 ROM (SH7054F) ............................................................................................ 737

21.1

Features.............................................................................................................................. 737

21.2

Overview............................................................................................................................ 738

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