Buffer read (opcode: d4h or d6h), Status register read (opcode: d7h) – Rainbow Electronics AT45DB642 User Manual

Page 26

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26

AT45DB642

1638F–DFLSH–09/02

Detailed Bit-level Read Timing – SPI Mode 0 (Continued)

Main Memory Page Read (Opcode: D2H)

Buffer Read (Opcode: D4H or D6H)

Status Register Read (Opcode: D7H)

SI

1

1

0

1

0

X

X

X

CS

SO

SCK

1

2

3

4

5

60

61

62

63

64

65

66

67

X

X

HIGH IMPEDANCE

D7

D6

D5

DATA OUT

COMMAND OPCODE

MSB

tSU

tV

D4

SI

1

1

0

1

0

X

X

X

CS

SO

SCK

1

2

3

4

5

36

37

38

39

40

41

42

43

X

X

HIGH IMPEDANCE

COMMAND OPCODE

tSU

D7

D6

D5

DATA OUT

MSB

tV

D4

SI

1

1

0

1

0

1

1

1

CS

SO

SCK

1

2

3

4

5

7

8

9

10

11

12

16

17

HIGH IMPEDANCE

STATUS REGISTER OUTPUT

COMMAND OPCODE

MSB

tSU

6

D1

D0

D7

LSB

MSB

D7

D6

D5

tV

D4