Table of Contents
Advertisement
CHAPTER 28 3M-BIT FLASH MEMORY
578
Figure 28.7-1 Example of the Flash Memory Write Procedure
FMCS: WE (bit 5)
Enable flash memory write
Write command sequence
(1) FxAAAA <-- XXAA
(2) Fx5554 <-- XX55
(3) FxAAAA <-- XXA0
(4) Write address <-- Write data
Read internal address
0
Read internal address
Data
Write error
FMCS: WE (bit 5)
Disable flash memory write
Start writing
Data
Data polling (DQ7)
Data
Timing limit (DQ5)
1
Data polling (DQ7)
Data
Final address
Complete writing
Next address
Confirm with the hardware
sequence flags.
Advertisement
Table of Contents
