Rainbow Electronics AT29C040A - Manual (Page 12)

12
AT29C040A
0333I–FLASH–05/02
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 - A18 = V
IL
.
Manufacturer 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. Manufacturer Code is 1F. The Device Code is A4.
LOAD DATA AA
TO
ADDRESS 5555
LOAD DATA 55
TO
ADDRESS 2AAA
LOAD DATA 90
TO
ADDRESS 5555
PAUSE 10 mS 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
PAUSE 10 mS EXIT PRODUCT
IDENTIFICATION
MODE (4)
Boot Block Lockout
Feature Enable Algorithm
(1)
Notes: 1. Data Format: I/O7 - I/O0 (Hex);
Address Format: A14 - A0 (Hex).
2. Lockout feature set on lower address boot block.
3. Lockout feature set on higher address boot block.
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
LOAD DATA 00
TO
ADDRESS 00000H (2)
PAUSE 10 mS
LOAD DATA FF
TO
ADDRESS 7FFFFH (3)
PAUSE 10 mS