Software product identification entry, Software product identification exit, Boot block lockout feature enable algorithm – Rainbow Electronics AT49LV002NT User Manual

Page 11

Advertising
background image

AT49BV/LV002(N)(T)

11

Software Product
Identification Entry

(1)

Software Product
Identification Exit

(1)

Notes for software product identification

1.

Data Format: I/O7 - I/O0 (Hex);
Address Format: A14 - A0 (Hex).

2.

A1 - A17 = V

IL

.

Manufacture Code is read for A0 = V

IL

;

Device Code is read for A0 = V

IH

.

3.

The device does not remain in identification mode if
powered down.

4.

The device returns to standard operation mode.

5.

Device Code:

07H - AT49BV/LV002(N)
08H - AT49BV/LV002(N)T

Boot Block Lockout
Feature Enable Algorithm

(1)

Notes for boot block lockout feature enable:

1.

Data Format: I/O7 - I/O0 (Hex);
Address Format: A14 - A0 (Hex).

2.

Boot block lockout feature enabled.

LOAD DATA AA

TO

ADDRESS 5555

LOAD DATA 55

TO

ADDRESS 2AAA

LOAD DATA 90

TO

ADDRESS 5555

ENTER PRODUCT

IDENTIFICATION

MODE

(2)(3)(5)

LOAD DATA AA

TO

ADDRESS 5555

LOAD DATA 55

TO

ADDRESS 2AAA

LOAD DATA F0

TO

ADDRESS 5555

EXIT PRODUCT

IDENTIFICATION

MODE

(4)

OR

LOAD DATA F0

TO

ANY ADDRESS

EXIT PRODUCT

IDENTIFICATION

MODE

(4)

LOAD DATA AA

TO

ADDRESS 5555

LOAD DATA 55

TO

ADDRESS 2AAA

LOAD DATA 80

TO

ADDRESS 5555

LOAD DATA AA

TO

ADDRESS 5555

LOAD DATA 55

TO

ADDRESS 2AAA

LOAD DATA 40

TO

ADDRESS 5555

PAUSE 1 second

(2)

Advertising