M58WR032EB datasheet(77/81 Pages) STMICROELECTRONICS

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M58WR032ET, M58WR032EB

Table 41. Command Interface States - Modify Table, Next Output

Note: 1. CI = Command Interface, CR = Configuration Register, EFP = Enhanced Factory Program, Quad EFP = Quadruple Enhanced Fac-

tory Program, DWP = Double Word Program, QWP = Quadruple Word Program, P/E. C. = Program/Erase Controller.

2. At Power-Up, all banks are in Read Array mode. A Read Array command issued to a busy bank, results in undetermined data out-

put.

3. The two cycle command should be issued to the same bank address.

4. If the P/E.C. is active, both cycles are ignored.

5. The Clear Status Register command clears the Status Register error bits except when the P/E.C. is busy or suspended.

6. The output state shows the type of data that appears at the outputs if the bank address is the same as the command address. A

bank can be placed in Read Array, Read Status Register, Read Electronic Signature or Read CFI Query mode, depending on the

command issued. Each bank remains in its last output state until a new command is issued. The next state does not depend on the

bank’s output state.

Current CI State

Next Output State After Command Input (6)

Read

Array(2)

Program

DWP,

QWP

Setup

(3,4)

Block

Erase,

Bank

Erase

Setup

(3,4)

EFP

Setup

Quad-

EFP

Setup

Erase

Confirm

P/E

Resume,

Block

Unlock

confirm,

EFP

Confirm

Program/

Erase

Suspend

Read

Status

Clear status

(5)

Read

Electronic

signature,

Read CFI

Query

Program Setup

Status Register

Erase Setup

OTP Setup

Program in

Erase Suspend

EFP Setup

EFP Busy

EFP Verify

Quad EFP Setup

Quad EFP Busy

Lock/CR Setup

Status Register

Lock/CR Setup

in Erase

Suspend

OTP Busy

Array

Status Register

Output Unchanged

Status

Output

Unchanged

Status

Ready

Array

Status Register

Output Unchanged

Status

Output

Unchanged

Electronic

Signature/

CFI

Program Busy

Erase Busy

Program/Erase

Program in

Erase Suspend

Busy

Program in

Erase Suspend

Suspended

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