Sck cs si so – Rainbow Electronics AT45DB642 User Manual
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AT45DB321E [PRELIMINARY DATASHEET]
8784B–DFLASH–11/2012
Figure 25-4. Main Memory Page Read (Opcode D2h)
Figure 25-5. Buffer Read (Opcode D4h or D6h)
Figure 25-6. Buffer Read – Low Frequency (Opcode D1h or D3h)
SCK
CS
SI
SO
MSB MSB
2 3
1
0
1 1 0 1 0 0 1 0
6 7
5
4 10
11
9
8 12
63
66
67
65
64
62
33 34
31 32
29 30
68
71 72
70
69
Opcode
A A A A
A A A
A A
MSB
X X X X
X X
MSB MSB
D D D D D D D D
D
D
Address Bits
32 Dummy Bits
Data Byte 1
High-impedance
SCK
CS
SI
SO
MSB MSB
2 3
1
0
1 1 0 1 0 1 0 0
6 7
5
4 10
11
9
8 12
39
42
43
41
40
37 38
33 36
35
34
31 32
29 30
44
47 48
46
45
Opcode
X X X X
A A A
X X
MSB
X X X X X X X X
MSB MSB
D D D D D D D D
D
D
Address Bits
Binary Page Size = 15 Dummy Bits + BFA8-BFA0
Standard DataFlash Page Size =
14 Dummy Bits + BFA9-BFA0
Dummy Bits
Data Byte 1
High-impedance
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 Dummy Bits + BFA8-BFA0
Standard DataFlash Page Size =
14 Dummy Bits + BA9-BFA0