Intel® Advanced+ Boot Block Flash Memory (C3)
9.1
Bus Operations...................................................................................................................39
9.1.1 Read ......................................................................................................................39
9.1.2 Write ......................................................................................................................39
9.1.3 Output Disable.......................................................................................................39
9.1.4 Standby..................................................................................................................40
9.1.5 Reset .....................................................................................................................40
10.0 Modes of Operation.....................................................................................................................41
10.1 Read Mode.........................................................................................................................41
10.1.1 Read Array.............................................................................................................41
10.1.2 Read Identifier .......................................................................................................41
10.1.3 CFI Query..............................................................................................................42
10.1.4 Read Status Register.............................................................................................42
10.1.4.1 Clear Status Register.............................................................................43
10.2 Program Mode....................................................................................................................43
10.2.1 12-Volt Production Programming...........................................................................43
10.2.2 Suspending and Resuming Program.....................................................................44
10.3 Erase Mode ........................................................................................................................44
10.3.1 Suspending and Resuming Erase .........................................................................45
11.0 Security Modes............................................................................................................................49
11.1 Flexible Block Locking ........................................................................................................49
11.1.1 Locking Operation..................................................................................................50
11.1.1.1 Locked State..........................................................................................50
11.1.1.2 Unlocked State.......................................................................................50
11.1.1.3 Lock-Down State....................................................................................50
11.2 Reading Block-Lock Status.................................................................................................50
11.3 Locking Operations during Erase Suspend........................................................................51
11.4 Status Register Error Checking ..........................................................................................51
11.5 128-Bit Protection Register.................................................................................................51
11.5.1 Reading the Protection Register............................................................................52
11.5.2 Programming the Protection Register....................................................................52
11.5.3 Locking the Protection Register.............................................................................52
11.6
V
Program and Erase Voltages ......................................................................................52
PP
11.6.1 Program Protection................................................................................................53
A
B
C
Write State Machine States.........................................................................................................54
Flow Charts..................................................................................................................................56
Common Flash Interface.............................................................................................................62
C.1 Query Structure Output.......................................................................................................62
C.2 Query Structure Overview ..................................................................................................63
C.3 Block Status Register .........................................................................................................64
C.4 CFI Query Identification String............................................................................................65
C.5 Device Geometry Definition................................................................................................66
C.6 Intel-Specific Extended Query Table ..................................................................................68
Additional Information ................................................................................................................70
Ordering Information...................................................................................................................71
D
E
May 2005
4
Intel® Advanced+ Boot Block Flash Memory (C3)
Order Number: 290645, Revision: 023
Datasheet