M58PR256J datasheet(38/114 Pages) STMICROELECTRONICS

38 / 114 page

Command interface

M58PR256J, M58PR512J

38/114

Table 8.

Factory Program command(1)

Command

Phase

Bus Write operations

1st

2nd

3rd

Final -1

Final

Add

Data

Add

Data Add

Data

Add

Data

Add

Data

Buffer

Enhanced

Factory

Program

Setup

BKA or

WA(2)

80h

WA1

D0h

Program/

Verify(3)

≥512

WA1

PD1

WA1

PD2 WA1

PD3

WA1

PD511

WA1

PD512

Exit

NOT

BA1

(4)

FFFFh

WA = Word Address in targeted bank, BKA = Bank Address, PD = Program Data, BA = Block Address, X = Don’t Care.

Any address within the bank can be used.

The Program/Verify phase can be executed any number of times as long as the data is to be programmed to the same

Block.

WA1 is the Start Address, NOT BA1 = Not Block Address of WA1.

Table 9.

Electronic Signature codes

Code

Address (h)

Data (h)

Manufacturer Code

Bank Address + 00

0020

Device Code

256 Mbit

Bank Address + 01

8818

512 Mbit

8819

Block

Protection

Main Block

Locked

Block Address + 02

DQ1, DQ0 = 01

Unlocked

DQ1, DQ0 = 00

Locked and Locked-Down

DQ1, DQ0 = 11

Unlocked and Locked-Down

DQ1, DQ0 = 10

EFA Block

Locked

DQ5, DQ4 = 01

Unlocked

DQ5, DQ4 = 00

Locked and Locked-Down

DQ5, DQ4 = 11

Unlocked and Locked-Down

DQ5, DQ4 = 10

Configuration Register

Bank Address + 05

CR(1)

Enhanced Configuration Register

Bank Address + 06

ECR(1)

Protection Register PR0

Lock

ST Factory Default

Bank Address + 80

0002

OTP Area Permanently Locked

0000

Protection Register PR0

Bank Address + 81

Unique Device Number

Bank Address + 84

Bank Address + 85

OTP Area

Bank Address + 88

Protection Register PR1 through PR16 Lock

Bank Address + 89

PRLD(1)

Protection Registers PR1-PR16

Bank Address + 8A

OTP Area

Bank Address + 109

CR = Configuration Register, ECR = Enhanced Configuration Register, PRLD = Protection Register Lock Data.

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