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CHAPTER 24 512K-BIT FLASH MEMORY
Figure 24.7-1 Example of the Flash Memory Write Procedure
1
YES
DATA
NO
DATA
DATA
DATA
0
FMCS: WE (bit 5)
Flash programming enabled
Program command sequence
(1) FxAAAA ← XXAA
(2) Fx5554 ← XX55
(3) FxAAAA ← XXA0
(4) Program address ← Program data
FMCS: WE (bit 5)
Flash programming enabled
Start writing
Next address
Internal address read
Data polling flag
(DQ7)
Timing limit (DQ5)
Internal address read
Data polling flag
(DQ7)
Last address
Completed
Programming error
: Check by hardware
sequence flag