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CHAPTER 28 3M-BIT FLASH MEMORY
Table 28.6-2 Hardware Sequence Flag Functions
State
→
Write
Write completed (write
address specified)
Chip/sector erase
State
Sector erase wait
change for
→
Erase
Sector erase suspended (sector
normal
operation
being erased)
Sector erase suspend
(sector being erased)
Sector erase suspended (sector not
being erased)
Write
Abnormal
operation
Chip/sector erase
*: If the DQ5 outputs "1" (exceed the timing limit), successive reads from a writing or erasing sector cause DQ2 to
toggle. DQ2 does not toggle when the successive reads are executed from other sectors.
566
DQ7
DATA:7
→
Erase completed
0
→
Erase started
0
→
Erase restarted
1
DATA:7
DQ7
DQ6
→
→
Toggle
DATA:6
→
Toggle
→
1
Stop
0
Toggle
→
→
1
Toggle
1
→
→
0
1
Toggle
DATA:6
DQ7
Toggle
0
Toggle
DQ5
DQ3
→
→
0
0
DATA:5
DATA:3
→
1
0
1
→
0
0
1
→
0
1
0
→
0
0
1
DATA:5
DATA:3
1
0
1
1
DQ2
→
1
DATA:2
→
Toggle
Stop
Toggle
Toggle
Toggle
DATA:2
1
*
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