at45db041d-su-sl955 ATMEL Corporation, at45db041d-su-sl955 Datasheet - Page 44

• Manufacturer Part Number: at45db041d-su-sl955
• Description: At45db041d 4-megabit 2.5-volt Or 2.7-volt Dataflash
• Manufacturer: ATMEL Corporation

24.9
24.10 Status Register Read (Opcode D7H)
24.11 Manufacturer and Device Read (Opcode 9FH)
44
Read Security Register (Opcode 77H)
AT45DB041D
SCK
SO
SCK
CS
SI
SCK
SO
CS
SI
SO
CS
SI
Note: Each transition
HIGH-IMPEDANCE
HIGH-IMPEDANCE
MSB
0
HIGH-IMPEDANCE
MSB
0
1
0
1
1
0
1
1
1
OPCODE
2
OPCODE
0
9FH
2
OPCODE
1
3
1
3
0
4
6
0
4
1
5
7
shown for SI and SO represents one byte (8 bits)
1
5
1
6
8
1
6
1
7
1
MSB
1FH
7
X
MSB
8
D
STATUS REGISTER DATA
8
X
14
9
D
9
X
10 11
15
D
10 11
X
DON'T CARE
16
DEVICE ID BYTE 1
D
X
12
D
12
X
D
13 14
22
D
23
X
D
29 30
15 16
DEVICE ID BYTE 2
24
MSB
X
D
STATUS REGISTER DATA
X
D
31 32
17
MSB
D
D
18
30
D
D
33
19
31
DATA BYTE 1
D
D
34
20
32
D
D
35
21 22
D
D
36
00H
D
D
37 38
23 24
38
MSB
D
D
D
D
39 40
MSB
D
3595L–DFLASH–4/08