Rainbow Electronics AT29C256 - Manual (Page 12)

12
AT29C256
0046O–FLASH–06/02
Software Product Identification Entry (1)
Notes: 1. Data Format: I/O7 - I/O0 (Hex);
Address Format: A14 - A0 (Hex).
2. A1 - A14 = 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 DC.
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)
Software Product Identification Exit
(1)
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)