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Rev.1.0
6.5.3 Procedure for Programming the Internal Flash Memory
To program the internal flash memory, use the flash write program which has been transferred from
the flash memory into the internal RAM after entering flash E/W enable mode.
In flash E/W enable mode, unlike in normal mode, data cannot be read from the internal flash
memory and, hence, no programs in the flash memory can be executed. Therefore, the flash write
program must be prepared in the internal RAM before entering flash E/W enable mode. (Once flash
E/W enable mode is entered into, accessing the flash memory is inhibited unless accessed with
flash commands.)
To access the internal flash memory in flash E/W enable mode, issue a command for the internal
flash memory address to be accessed. The commands that can be issued in flash E/W enable
mode are listed below.
Note: During flash E/W enable mode, the flash memory cannot be accessed for read/write
wordwise.
Table 6.5.2 Commands in Flash E/W Enable Mode
Command Name
Command Data Issued
Read Array command
H'FFFF
Page Program command
H'4141
Lock Bit Program command
H'7777
Block Erase command
H'2020
Erase All Unlock Blocks command
H'A7A7
Read Status Register command
H'7070
Clear Status Register command
H'5050
Read Lock Bit Status command
H'7171
Verify command (Note)
H'D0D0
Note: Use this command you performed Lock Bit Program, Block Erase, or Erase All Unlock Blocks
operation.
(1) Read Array command
The internal flash memory is placed in read mode by writing command data H'FFFF to any flash
memory address. Read the desired address, and the memory content at that address is read out.
To exit flash E/W enable mode, be sure to run the Read Array command before exiting flash E/W
enable mode.
INTERNAL MEMORY
6.5 Programming the Internal Flash Memory
Содержание 32172
Страница 20: ... This is a blank page 16 ...
Страница 21: ...1 1 Overview 1 2 Block Diagram 1 3 Pin Functions 1 4 Pin Layout CHAPTER 1 CHAPTER 1 OVERVIEW ...
Страница 44: ...1 1 24 Rev 1 0 This is a blank page Overview 1 4 Pin Layout ...
Страница 58: ...2 2 14 Rev 1 0 This is a blank page CPU 2 6 Data Formats ...
Страница 122: ...4 4 26 Rev 1 0 This is a blank page EIT 4 13 Precautions on EIT ...
Страница 200: ...7 7 6 Rev 1 0 This is a blank page RESET 7 4 Precautions to Be Taken Immediately after Reset ...
Страница 240: ...8 8 40 Rev 1 0 This is a blank page INPUT OUTPUT PORTS AND PIN FUNCTIONS 8 5 Precautions on Input Output Ports ...
Страница 298: ...9 9 58 Rev 1 0 This is a blank page DMAC 9 4 Precautions on Using DMAC ...
Страница 416: ...10 10 118 Rev 1 0 This is a blank page INPUT OUTPUT TIMERS 10 6 TOM Output Related 16 bit Timers ...
Страница 658: ...14 14 16 Rev 1 0 REAL TIME DEBUGGER RTD 14 4 Typical Connection with the Host This is a blank page ...
Страница 718: ...16 16 16 Rev 1 0 This is a blank page D A CONVERTERS 16 3 Functional Description of the D A Converters ...
Страница 766: ...18 18 22 Rev 1 0 WAIT CONTROLLER 18 3 Typical Operation of the Wait Controller This is a blank page ...
Страница 776: ...19 19 10 Rev 1 0 RAM BACKUP MODE 19 4 Exiting RAM Backup Mode Wakeup This is a blank page ...
Страница 777: ...CHAPTER 20 CHAPTER 20 OSCILLATION CIRCUIT 20 1 Oscillator Circuit 20 2 Clock Generator Circuit ...
Страница 782: ...20 20 6 Rev 1 0 OSCILLATION CIRCUIT 20 2 Clock Generator Circuit This is a blank page ...
Страница 856: ...23 23 26 Rev 1 0 This is a blank page ELECTRICAL CHARACTERISTICS 23 6 AC Characteristics ...
Страница 857: ...24 1 A D Conversion Characteristics CHAPTER 24 CHAPTER 24 STANDARD CHARACTERISTICS ...
Страница 859: ...Appendix 1 1 Dimensional Outline Drawing APPENDIX 1 APPENDIX 1 MECHANICAL SPECIFICATIONS ...
Страница 861: ...Appendix 2 1 M32R E Instruction Processing Time APPENDIX 2 APPENDIX 2 INSTRUCTION PROCESSING TIME ...
Страница 865: ...Appendix 3 1 Precautions about Noise APPENDIX 3 APPENDIX 3 PRECAUTIONS ABOUT NOISE ...