AT49BV322A ATMEL Corporation, AT49BV322A Datasheet - Page 10

• Manufacturer Part Number: AT49BV322A
• Description: 32-megabit (2M x 16/4M x 8) 3-volt Only Flash Memory
• Manufacturer: ATMEL Corporation

Figure 1. Data Polling Algorithm
(Configuration Register = 00)
Notes:
10
NO
1. VA = Valid address for programming. During a sec-
2. I/O7 should be rechecked even if I/O5 = “1”
AT49BV32XA(T)
Successful, Write
tor erase operation, a valid address is any sector
address within the sector being erased. During
chip erase, a valid address is any non-protected
sector address.
because I/O7 may change simultaneously with
I/O5.
Read I/O7 - I/O0
Read I/O7 - I/O0
Program/Erase
I/O3, I/O5 = 1?
Operation Not
Exit Command
I/O7 = Data?
Product ID
I/O7 = Data?
Addr = VA
Addr = VA
START
NO
YES
NO
YES
YES
Program/Erase
Successful,
Read Mode
Operation
Device in
Figure 2. Data Polling Algorithm
(Configuration Register = 01)
Note:
NO
1. VA = Valid address for programming. During a sec-
Successful, Write
tor erase operation, a valid address is any sector
address within the sector being erased. During
chip erase, a valid address is any non-protected
sector address.
Read I/O7 - I/O0
Read I/O7 - I/O0
Read I/O7 - I/O0
Program/Erase
I/O3, I/O5 = 1?
Operation Not
Exit Command
Toggle Bit =
Toggle Bit =
Product ID
Toggle?
Toggle?
START
Twice
YES
YES
YES
NO
NO
Successful, Write
Product ID Exit
Program/Erase
Operation
Command
3308D–FLASH–5/03