581
CHAPTER 28 3M-BIT FLASH MEMORY
Figure 28.7-2 Example of the Flash Memory Sector Erase Procedure
NO
YES
YES
0
1
NO
YES
NO
YES
NO
0
Start erasing
FMCS: WE (bit 5)
Enable flash memory erase
Erase command sequence
(1) FxAAAA <-- XXAA
(2) Fx5554 <-- XX55
(3) FxAAAA <-- XX80
(4) FxAAAA <-- XXAA
(5) Fx5554 <-- XX55
Sector erase timer (DQ3)
(6) Enter code to erase sector
(30H)
Read internal address
Another erase sector
Read internal address 1
Read internal address 2
Next sector
Toggle bit (DQ6)
data 1(DQ6) = data 2(DQ6)
Timing limit (DQ5)
Read internal address 1
Read internal address 2
Toggle bit (DQ6)
data 1(DQ6) = data 2(DQ6)
Erase error
Final sector
FMCS: WE (bit 5)
Disable flash memory erase
Complete erasing
Confirm
w
ith the hard
w
are
sequence flags.
1
Содержание MB90390 Series
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Страница 17: ...xiii APPENDIX D List of Interrupt Vectors 690 INDEX 695 ...
Страница 18: ...xiv ...
Страница 132: ...104 CHAPTER 5 CLOCKS ...
Страница 152: ...124 CHAPTER 6 CLOCK MODULATOR ...
Страница 210: ...182 CHAPTER 11 TIME BASE TIMER ...
Страница 218: ...190 CHAPTER 12 WATCHDOG TIMER ...
Страница 264: ...236 CHAPTER 14 16 BIT RELOAD TIMER WITH EVENT COUNT FUNCTION ...
Страница 274: ...246 CHAPTER 15 WATCH TIMER ...
Страница 306: ...278 CHAPTER 17 DTP EXTERNAL INTERRUPTS ...
Страница 338: ...310 CHAPTER 18 8 10 BIT A D CONVERTER ...
Страница 364: ...336 CHAPTER 19 UART0 UART1 ...
Страница 398: ...370 CHAPTER 20 UART2 UART3 Figure 20 5 2 ORE Set Timing Receive data RDRF ORE ...
Страница 432: ...404 CHAPTER 20 UART2 UART3 ...
Страница 482: ...454 CHAPTER 22 SERIAL I O ...
Страница 560: ...532 CHAPTER 24 STEPPING MOTOR CONTROLLER ...
Страница 582: ...554 CHAPTER 27 ROM MIRRORING MODULE ...
Страница 632: ...604 CHAPTER 29 EXAMPLES OF SERIAL PROGRAMMING CONNECTION ...
Страница 722: ...694 APPENDIX ...
Страница 723: ...695 INDEX The index follows on the next page This is listed in alphabetic order ...
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