MBM29DL400BC Fujitsu Media Devices, MBM29DL400BC Datasheet - Page 52

• Manufacturer Part Number: MBM29DL400BC
• Description: 4M (512K X 8/256K X 16) BIT
• Manufacturer: Fujitsu Media Devices

52
MBM29DL400TC
FAST MODE ALGORITHM
Remove V
Write Reset Command
Device is Operating in
Increment PLSCNT
Unprotection Mode
Temporary Sector
PLSCNT = 25?
Device Failed
ID
from RESET
No
Yes
Figure 27
-55/-70/-90/-12
No
No
Extended Sector Protection Algorithm
To Setup Sector Protection
To Verify Sector Protection
(A
(A
Read from Sector Address
(A
Remove V
Protection Other Sector
Write Reset Command
0
0
0
To Sector Protection
= V
= V
= V
Protection Entry?
Sector Protection
Extended Sector
Write XXXH/60H
Time Out 150 s
Write SPA/40H
Write SPA/60H
RESET = V
Data = 01H?
PLSCNT = 1
IL
IL
IL
Wait to 4 s
Completed
/MBM29DL400BC
, A
, A
, A
Start
1
1
1
ID
= V
= V
= V
?
from RESET
Yes
IH
IH
IH
No
Yes
, A
, A
, A
ID
6
6
6
= V
= V
= V
IL
IL
IL
)
)
)
Yes
Setup Next Sector Address
-55/-70/-90/-12