Buffer read (opcode: d4h or d6h), Status register read (opcode: d7h) – Rainbow Electronics AT45DB642 User Manual
Page 32
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32
AT45DB642
1638F–DFLSH–09/02
Detailed Parallel Read Timing – SPI Mode 3 (Continued)
Main Memory Page Read (Opcode: D2H)
Buffer Read (Opcode: D4H or D6H)
Status Register Read (Opcode: D7H)
I/07-I/O0
(INPUT)
CMD
ADDR
ADDR
ADDR
X
X
X
X
CS
I/07-I/O0
(OUTPUT)
CLK
1
2
3
4
5
61
62
63
64
65
66
67
X
X
HIGH IMPEDANCE
DATA DATA DATA
DATA OUT
COMMAND OPCODE
tSU
tV
DATA
68
I/O7-I/O0
(INPUT)
CMD
ADDR ADDR ADDR
X
CS
I/O7-I/O0
(OUTPUT)
CLK
1
2
3
4
5
6
7
8
HIGH IMPEDANCE
DATA
DATA
DATA
DATA OUT
tSU
tV
DATA
9
I/O7-I/O0
(INPUT)
CMD
CS
I/O7-I/O0
(OUTPUT)
CLK
1
2
3
4
HIGH
IMPEDANCE
HIGH
IMPEDANCE
DATA
DATA
DATA
STATUS REGISTER
OUTPUT
tSU
tV
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