Software product identification entry(1), Software product identification exit(1), Boot block lockout feature enable algorithm(1) – Rainbow Electronics AT49BV512 User Manual
Page 11: Software product identification entry, Software product identification exit, Boot block lockout feature enable algorith m

11
AT49BV512
1026E–FLASH–06/02
Software Product
Identification Entry
(1)
Software Product
Identification Exit
(1)
Notes:
1. Data Format: I/O7 - I/O0 (Hex);
Address Format: A14 - A0 (Hex).
2. A1 - A15 = V
IL
.
Manufacture Code is read for A0 = V
IL
;
Device Code is read for A0 = V
IH
.
3. The device does note remain in identification mode if
powered down.
4. The device returns to standard operation mode.
5. Manufacturers Code: 1FH
Device Code: 03H.
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)
LOAD DATA F0
TO
ANY ADDRESS
EXIT PRODUCT
IDENTIFICATION
MODE
(4)
OR
Boot Block Lockout Feature
Enable Algorithm
(1)
Notes:
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 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)