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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