at52bc3221a ATMEL Corporation, at52bc3221a Datasheet - Page 24

• Manufacturer Part Number: at52bc3221a
• Description: 32-mbit Flash 8-mbit Psram Stack Memory
• Manufacturer: ATMEL Corporation

Software Product Identification Entry
Software Product Identification Exit
Notes:
24
1. Data Format: I/O15 - I/O8 (Don’t Care); I/O7 - I/O0 (Hex)
2.
3. The device does not remain in identification mode if powered
4. The device returns to standard operation mode.
5. Manufacturer Code: 001FH(x16)
6. Either one of the Product ID Exit commands can be used.
AT52BC3221A(T)
IDENTIFICATION
LOAD DATA AA
EXIT PRODUCT
Address Format: A11 - A0 (Hex), and A11 - A20 (Don’t
Care).
A1 - A20 = V
Device Code is read for A0 = V
down.
Device Code:
ADDRESS AAA
LOAD DATA F0
LOAD DATA 55
ADDRESS 555
ADDRESS 555
MODE
TO
TO
TO
(4)
IL
ENTER PRODUCT
IDENTIFICATION
. Manufacturer Code is read for A0 = V
00C8 (x16)-Bottom Boot
00C9H (x16)-Top Boot.
LOAD DATA AA
ADDRESS 555
LOAD DATA 55
ADDRESS AAA
LOAD DATA 90
ADDRESS 555
MODE
OR
TO
TO
TO
(2)(3)(5)
IH
IDENTIFICATION
.
EXIT PRODUCT
LOAD DATA F0
ANY ADDRESS
MODE
TO
(4)
(1)(6)
(1)
IL
;
Sector Lockdown Enable Algorithm
Notes:
1. Data Format: I/O15 - I/O8 (Don’t Care); I/O7 - I/O0 (Hex)
2. Sector Lockdown feature enabled.
Address Format: A11 - A0 (Hex), A-1, and A11 - A20
(Don’t Care).
SECTOR ADDRESS
PAUSE 200 µs
LOAD DATA AA
LOAD DATA AA
ADDRESS AAA
ADDRESS AAA
LOAD DATA 55
LOAD DATA 80
LOAD DATA 55
LOAD DATA 60
ADDRESS 555
ADDRESS 555
ADDRESS 555
TO
TO
TO
TO
TO
TO
(2)
3466A–STKD–11/04
(1)