6 buffer read (low frequency: opcode d1h or d3h), 7 read sector protection register (opcode 32h), 8 read sector lockdown register (opcode 35h) – Rainbow Electronics AT45DB321D User Manual
Page 43: Sck cs si so
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43
3597J–DFLASH–4/08
AT45DB321D
24.6
Buffer Read (Low Frequency: Opcode D1H or D3H)
24.7
Read Sector Protection Register (Opcode 32H)
24.8
Read Sector Lockdown Register (Opcode 35H)
SCK
CS
SI
SO
MSB
MSB
2
3
1
0
1
1
0
1
0
0
0
1
6
7
5
4
10 11
9
8
12
37 38
33
36
35
34
31 32
29 30
39 40
OPCODE
X
X
X
X
A
A
A
X
X
MSB
MSB
D
D
D
D
D
D
D
D
D
D
DATA BYTE 1
HIGH-IMPEDANCE
ADDRESS BITS
BINARY PAGE SIZE = 15 DON'T CARE + BFA8-BFA0
STANDARD DATAFLASH PAGE SIZE =
14 DON'T CARE + BFA9-BFA0
SCK
CS
SI
SO
MSB
MSB
2
3
1
0
0
0
1
1
0
0
1
0
6
7
5
4
10 11
9
8
12
37 38
33
36
35
34
31 32
29 30
39 40
OPCODE
X
X
X
X
X
X
X
X
X
MSB
MSB
D
D
D
D
D
D
D
D
D
DON'T CARE
DATA BYTE 1
HIGH-IMPEDANCE
SCK
CS
SI
SO
MSB
MSB
2
3
1
0
0
0
1
1
0
1
0
1
6
7
5
4
10 11
9
8
12
37 38
33
36
35
34
31 32
29 30
39 40
OPCODE
X
X
X
X
X
X
X
X
X
MSB
MSB
D
D
D
D
D
D
D
D
D
DON'T CARE
DATA BYTE 1
HIGH-IMPEDANCE
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