MBM29PL64LM SPANSION, MBM29PL64LM Datasheet - Page 63

• Manufacturer Part Number: MBM29PL64LM
• Description: Flash Memory 64 M (8M X 8/4M X 16) BIT
• Manufacturer: SPANSION

62
MBM29PL64LM
Remove V
Temporary Sector Group
Write Reset Command
Device is Operating in
Unprotection Mode
Increment PLSCNT
PLSCNT = 25?
Device Failed
ID
from RESET
No
Yes
Extended Sector Group Protection Algorithm
90/10
No
No
To Verify Sector Group Protection
(
Write 60h to Sector Address
(A
(A
A
Protection Write XXXh/60h
Remove V
To Protect Sector Group
Write 40h to Sector Address
Read from Sector Group
6
6
6
Sector Group Protection
Extended Sector Group
To Setup Sector Group
Protection Other Sector
Write Reset Command
= A
= A
= A
Protection Entry?
Time Out 250 s
3
3
3
RESET = V
= A
= A
= A
PLSCNT = 1
Data = 01h?
Wait to 4 s
Completed
Address
Group ?
2
2
2
Start
ID
= A
= A
= A
from RESET
0
0
0
Yes
=V
=V
=V
No
Yes
IL
IL
IL
ID
, A
, A
, A
1
1
1
= V
= V
= V
IH
IH
IH
)
)
)
Yes
Setup Next Sector Group
Address