M58WR064 STMICROELECTRONICS [STMicroelectronics], M58WR064 Datasheet - Page 79

• Manufacturer Part Number: M58WR064
• Description: 64 Mbit 4Mb x 16, Multiple Bank, Burst 1.8V Supply Flash Memory
• Manufacturer: STMICROELECTRONICS [STMicroelectronics]

Table 42. Command Interface States - Lock Table, Next State
Note: 1. CI = Command Interface, CR = Configuration Register, EFP = Enhanced Factory Program, Quad EFP = Quadruple Enhanced Fac-
Program in
QuadEFP
Suspend
Program
in Erase Suspend
Erase
Erase
Current CI State
OTP
EFP
Lock/CR Setup
Lock/CR Setup
2. EFP and Quad EFP are allowed only when Status Register bit SR0 is set to ‘0’. EFP and Quad EFP are busy if Block Address is
3. EFP and Quad EFP exit when Block Address is different from first Block Address and data is FFFFh.
4. If the P/E.C. is active, both cycles are ignored.
5. Illegal commands are those not defined in the command set.
Ready
tory Program, P/E. C. = Program/Erase Controller.
first EFP Address. Any other commands are treated as data.
Suspend
Suspend
Suspend
Setup
Setup
Setup
Setup
Setup
Setup
Verify
Busy
Busy
Busy
Busy
Busy
Busy
Erase Suspend (Lock error)
Lock/CR
Lock/CR
Lock/CR
Suspend
Setup
Setup in
Setup
Erase
Ready (Lock error)
(4)
OTP Setup
OTP Setup
(4)
Quad EFP Busy
EFP Verify
EFP Busy
Block Lock
Program in Erase Suspend Suspended
Confirm
Program in Erase Suspend Busy
Program in Erase Suspend Busy
Next CI State After Command Input
Program Suspended
(2)
(2)
Quad EFP Busy
Erase Suspend
Program Busy
Program Busy
Ready (error)
Ready (error)
(2)
Lock-Down
Erase Busy
OTP Busy
Confirm
Ready
Block
Erase Suspended
(2)
Confirm
Set CR
Ready
M58WR064ET, M58WR064EB
Quad EFP
EFP Verify
EFP Exit,
Erase Suspend (Lock
Exit
Ready
Ready
Ready (Lock error)
(3)
error)
EFP Verify
EFP Busy
Command
Quad EFP
Busy
Illegal
(5)
(2)
(2)
(2)
Completed
Suspended
Operation
P/E. C.
Ready
Ready
Ready
Ready
Ready
Erase
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
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