NRF7002-QFAA-R datasheet(18/61 Pages) NORDIC

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Quad Serial Peripheral Interface

Byte 1

Byte 2

Byte 3

SCK

CSN

IO0

IO1

IO2

IO3

Hi-Z

Command – 5h

Status Register out

0 1 2 3 4 5 6 7

1 2 3 4 5 6 7

7 6 5 4 3 2 1 0 7 6

Figure 6: RDSR (Read status register 0)

The following figure shows the timing diagram for the cipher initialization command.

Byte 1

Byte 2

Byte 3

SCK

CSN

IO0

IO1

IO2

IO3

Hi-Z

Command – 4Fh

NONCE CFG

0 1 2 3 4 5 6 7

1 2 3 4 5 6 7

7 6 5 4 3 2 1 0 7 6

Figure 7: CIPHER INIT (Initialize cipher)

The following figures show the timing diagram for the data read and program commands.

Byte 1

Byte 2, 3, 4

Byte 5

Byte 6

Byte 7

SCK

CSN

IO0

IO1

IO2

IO3

Hi-Z

Command – 0Bh

24-bit

address

0 1 2 3 4 5 6 7 0 1 2 3

8 dummy bits

21 22 23

1 2 3 4 5 6 7

7 6 5 4 3 2 1 0 7 6

22 21 20

2 1 0

Data in

Figure 8: FASTREAD (Read bytes at higher speed)

4486_184 v1.0

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