AT45DB021D-SSH-B-RET Atmel, AT45DB021D-SSH-B-RET Datasheet - Page 40

• Manufacturer Part Number: AT45DB021D-SSH-B-RET
• Manufacturer: Atmel

40
Figure 19-8. Read Sector Lockdown Register (Opcode 35H)
Figure 19-9. Read Security Register (Opcode 77H)
Figure 19-10. Status Register Read (Opcode D7H)
SCK
SCK
SCK
Atmel AT45DB021D
SO
SO
SO
CS
CS
CS
SI
SI
SI
MSB
HIGH-IMPEDANCE
MSB
HIGH-IMPEDANCE
MSB
HIGH-IMPEDANCE
0
0
1
0
0
0
0
1
1
1
1
1
1
1
0
2
2
2
OPCODE
OPCODE
OPCODE
1
1
1
3
3
3
0
0
0
4
4
4
1
1
1
5
5
5
0
1
1
6
6
6
1
1
1
7
7
7
MSB
MSB
MSB
D
X
X
STATUS REGISTER DATA
8
8
8
X
X
D
9
9
9
X
X
D
10 11
10 11
10 11
X
X
D
DON'T CARE
DON'T CARE
D
X
X
12
12
12
X
X
D
13 14
D
D
15 16
X
X
29 30
29 30
MSB
D
STATUS REGISTER DATA
X
X
D
17
X
X
31 32
31 32
D
18
MSB
MSB
D
D
D
19
D
D
33
33
D
20
DATA BYTE 1
DATA BYTE 1
D
D
34
34
D
21 22
D
D
35
35
D
D
D
36
36
D
23 24
D
D
37 38
37 38
MSB
D
D
D
D
D
D
39 40
39 40
MSB
MSB
D
D
3638J–DFLASH–5/10