Buffer read (opcode: 54h or 56h), Status register read (opcode: 57h) – Rainbow Electronics AT45DB021B User Manual
Page 21
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21
AT45DB021B
1937F–DFLSH–10/02
Detailed Bit-level Read Timing – Inactive Clock Polarity High (Continued)
Buffer Read (Opcode: 54H or 56H)
Status Register Read (Opcode: 57H)
SI
0
1
0
1
0
X
X
X
CS
SO
SCK
1
2
3
4
5
37
38
39
40
41
42
43
X
X
HIGH-IMPEDANCE
D7
D6
D5
DATA OUT
COMMAND OPCODE
MSB
t
SU
t
V
D4
44
SI
0
1
0
1
0
1
1
1
CS
SO
SCK
1
2
3
4
5
7
8
9
10
11
12
17
18
HIGH-IMPEDANCE
D7
D6
D5
STATUS REGISTER OUTPUT
COMMAND OPCODE
MSB
t
SU
t
V
6
D4
D0
D7
LSB
MSB
D6
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