M29W800DB STMICROELECTRONICS [STMicroelectronics], M29W800DB Datasheet - Page 18

• Manufacturer Part Number: M29W800DB
• Description: 8 Mbit (1Mb x8 or 512Kb x16, Boot Block) 3V Supply Flash Memory
• Manufacturer: STMICROELECTRONICS [STMicroelectronics]

M29W800DT, M29W800DB
Table 7. Status Register Bits
Note: Unspecified data bits should be ignored.
Figure 8. Data Polling Flowchart
18/42
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
FAIL
DQ7
DQ5
DQ7
= 1
=
=
YES
Faulty Block Address
NO
NO
Good Block Address
Non-Erasing Block
Non-Erasing Block
Non-Erasing Block
Erasing Block
Erasing Block
Erasing Block
Any Address
Any Address
Any Address
Any Address
YES
YES
Address
PASS
AI03598
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
0
0
1
0
0
0
0
0
0
1
1
NO
DQ5 & DQ6
READ DQ6
READ DQ6
TOGGLE
TOGGLE
START
TWICE
READ
FAIL
DQ6
DQ5
DQ6
= 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
AI01370C
RB
0
0
0
0
0
0
0
0
1
1
0
0