M58WR064EBZB datasheet(79/82 Pages) STMICROELECTRONICS

79 / 82 page

79/82

M58WR064ET, M58WR064EB

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-

tory Program, P/E. C. = Program/Erase Controller.

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

first EFP Address. Any other commands are treated as data.

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.

Current CI State

Next CI State After Command Input

Lock/CR

Setup(4)

OTP Setup

(4)

Block Lock

Confirm

Block

Lock-Down

Confirm

Set CR

Confirm

EFP Exit,

Quad EFP

Exit (3)

Illegal

Command

(5)

P/E. C.

Operation

Completed

Ready

Lock/CR

Setup

OTP Setup

Ready

N/A

Lock/CR Setup

Ready (Lock error)

Ready

Ready (Lock error)

N/A

OTP

Setup

OTP Busy

N/A

Busy

Ready

Program

Setup

Program Busy

N/A

Busy

Program Busy

Ready

Suspend

Program Suspended

N/A

Erase

Setup

Ready (error)

N/A

Busy

Erase Busy

Ready

Suspend

Lock/CR

Setup in

Erase

Suspend

Erase Suspended

N/A

Program in

Erase

Suspend

Setup

Program in Erase Suspend Busy

N/A

Busy

Program in Erase Suspend Busy

Erase

Suspended

Suspend

Program in Erase Suspend Suspended

N/A

Lock/CR Setup

in Erase Suspend

Erase Suspend (Lock error)

Erase Suspend

Erase Suspend (Lock

error)

N/A

EFP

Setup

Ready (error)

N/A

Busy

EFP Busy (2)

EFP Verify

EFP Busy(2)

N/A

Verify

EFP Verify (2)

Ready

EFP Verify(2)

Ready

QuadEFP

Setup

Quad EFP Busy (2)

N/A

Busy

Quad EFP Busy (2)

Ready

Quad EFP

Busy(2)

Ready

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