3 Volt Intel® Advanced+ Boot Block Flash Memory Stacked-CSP Family
Figure 19. Locking Operations Flowchart
Bus
Operation
Command
Comments
Data = 60H
Start
Write
Config. Setup
Addr = X
Write 60H
(Configuration Setup)
Data= 01H (Lock Block)
D0H (Unlock Block)
2FH (Lockdown Block)
Addr=Within block to lock
Lock, Unlock,
or Lockdown
Write
Write
01H, D0H, or 2FH
Write
Read
Data = 90H
(Optional)
Configuration Addr = X
Read
(Optional)
Block Lock
Status
Block Lock Status Data
Addr = Second addr of block
Write 90H
(Read Configuration)
Confirm Locking Change on
DQ1, DQ0. (See Block Locking
State Table for valid
Standby
(Optional)
combinations.)
Read Block Lock Status
Locking
Change
Confirmed?
No
Write FFh
(Read Array)
Locking Change
Complete
0645_16
50
Datasheet
INTEL [ INTEL ]
