MBM29LV400TC-55PF Meet Spansion Inc., MBM29LV400TC-55PF Datasheet - Page 49

• Manufacturer Part Number: MBM29LV400TC-55PF
• Description: Flash Memory Cmos 4m 512k ? 8/256k ? 16 Bit
• Manufacturer: Meet Spansion Inc.

48
MBM29LV400TC
7.
Extended Sector Protection 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
-55/70/90
No
No
Write SPA/60h to Sector Address
Write SPA/40h to Sector Address
To Setup Sector Protection
To Verify Sector Protection
Read from Sector Address
Remove V
/MBM29LV400BC
Protection Other Sector
(A
(A
(Addr. = SPA, A
Write Reset Command
6
6
To Protect Sector
Protection Entry?
Sector Protection
Extended Sector
Time Out 150 s
Write XXXh/60h
= A
= A
RESET = V
A
PLSCNT = 1
Data = 01h?
Wait to 4 s
Completed
6
0
0
= A
= V
= V
Start
ID
?
0
from RESET
IL
IL
= V
, A
, A
Yes
No
Yes
1
1
1
IL
ID
= V
= V
)
= V
IH
IH
IH
)
)
,
Yes
Setup Next Sector Address
-55/70/90