MBM29DL640E Fujitsu Microelectronics, Inc., MBM29DL640E Datasheet - Page 65

• Manufacturer Part Number: MBM29DL640E
• Description: Flash Memory 64 M 8 M X 8/4 M X 16 Bit Dual Operation
• Manufacturer: Fujitsu Microelectronics, Inc.

Remove V
Temporary Sector Group
Write Reset Command
Device is Operating in
Increment PLSCNT
Unprotection Mode
PLSCNT
Device Failed
Figure 28 Extended Sector Group Protection Algorithm
ID
from RESET
No
Yes
25?
No
No
To Setup Sector Group Protection
To Verify Sector Group Protection
(A
(A
Read from Sector Group Address
6
6
Write 60h to Sector Address
Write 40h to Sector Address
Remove V
To Protect Sector Group
(Addr.
Extended Sector Group
Write Reset Command
A
A
Protect Other Sector
3
3
A
Sector Protection
Protection Entry?
Write XXXh/60h
Time out 250 s
1
RESET
PLSCNT
A
A
Data
Wait to 4 s
Completed
2
2
V
Group?
SPA, A
IH
Start
ID
A
A
, A
from RESET
0
0
01h?
Yes
Yes
6
No
V
V
V
0
ID
1
IL
IL
V
, A
, A
IL
V
)
IL
1
1
,
MBM29DL640E
V
V
IH
IH
)
)
Setup Next Sector Address
Yes
80/90/12
65