M29DW323DB ST Microelectronics, M29DW323DB Datasheet - Page 21

• Manufacturer Part Number: M29DW323DB
• Description: 32 Mbit 4Mb x8 or 2Mb x16 / Dual Bank 8:24 / Boot Block 3V Supply Flash Memory
• Manufacturer: ST Microelectronics

Table 8. Status Register Bits
Note: Unspecified data bits should be ignored.
Figure 8. Data Polling Flowchart
Program
Program During Erase
Suspend
Program Error
Chip Erase
Block Erase before
timeout
Block Erase
Erase Suspend
Erase Error
Operation
at VALID ADDRESS
at VALID ADDRESS
NO
READ DQ5 & DQ7
READ DQ7
START
DATA
DATA
DQ7
DQ5
DQ7
FAIL
= 1
=
=
YES
Faulty Block Address
NO
NO
Good Block Address
Non-Erasing Block
Non-Erasing Block
Non-Erasing Block
Bank Address
Bank Address
Bank Address
Erasing Block
Erasing Block
Erasing Block
Any Address
YES
YES
Address
PASS
AI90194
DQ7
DQ7
DQ7
DQ7
0
0
0
0
0
1
0
0
Figure 9. Data Toggle Flowchart
No Toggle
Toggle
Toggle
Toggle
Toggle
Toggle
Toggle
Toggle
Toggle
Toggle
Toggle
DQ6
Data read as normal
DQ5
M29DW323DT, M29DW323DB
0
0
1
0
0
0
0
0
0
1
1
NO
DQ5 & DQ6
READ DQ6
READ DQ6
TOGGLE
TOGGLE
START
TWICE
READ
DQ6
DQ5
DQ6
FAIL
= 1
DQ3
=
=
–
–
–
1
0
0
1
1
–
1
1
YES
YES
YES
NO
NO
No Toggle
No Toggle
No Toggle
Toggle
Toggle
Toggle
Toggle
Toggle
DQ2
–
–
–
PASS
AI90195B
RB
0
0
0
0
0
0
0
0
1
1
0
0
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