M58LR128HT datasheet(106/112 Pages) STMICROELECTRONICS

106 / 112 page

Command interface state tables

M58LR128HT, M58LR128HB

106/112

OTP Busy

Array

Status Register

Output Unchanged

Status

Output

Unchanged

Status

Ready

Electronic

Signature/

CFI

Program Busy

Erase Busy

Buffer Program

Busy

Program/Erase

Suspend

Buffer Program

Suspend

Program Busy in

Erase Suspend

Buffer Program

Busy in Erase

Suspend

Program Suspend

in Erase Suspend

Buffer Program

Suspend in Erase

Suspend

Blank Check busy

Illegal State

Output Unchanged

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 mode,

depending on the command issued. Each bank remains in its last output state until a new command is issued to that bank.

The next state does not depend on the bank output state.

CI = Command Interface, CR = Configuration Register, BEFP = Buffer Enhanced Factory Program, P/E. C. =

Program/Erase Controller.

At Power-Up, all banks are in Read Array mode. Issuing a Read Array command to a busy bank, results in undetermined

data output.

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

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

Table 43.

Command Interface states - modify table, next output state(1) (2) (continued)

Current CI State

Command Input

Read

Array

(3)

(FFh)

Program

Setup(4)

(5)

(10/40h)

Buffer

Program

(E8h)

Block

Erase,

Setup(4)

(5)

(20h)

BEFP

Setup

(80h)

Blank

Check

setup

(BCh)

Erase Confirm

P/E Resume,

Block Unlock

confirm, BEFP

Confirm(4)(5)

(D0h)

Blank

Check

confir

(CBh)

Program/

Erase

Suspend

(B0h)

Read

Status

(70h)

Clear

Status

(50h)

Read

Electronic

signature,

Read CFI

Query

(90h, 98h)

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