AD9380SLASHPCB datasheet(54/60 Pages) AD

54 / 60 page

AD9380

Rev. 0 | Page 54 of 60

SERIAL INTERFACE READ/WRITE EXAMPLES

Write to one control register:

•

Start signal

•

Slave address byte (R/W bit = low)

•

Base address byte

•

Data byte to base address

•

Stop signal

Write to four consecutive control registers:

•

Start signal

•

Slave address byte (R/W bit = low)

•

Base address byte

•

Data byte to base address

•

Data byte to (base address + 1)

•

Data byte to (base address + 2)

•

Data byte to (base address + 3)

•

Stop signal

Read from one control register:

•

Start signal

•

Slave address byte (R/W\ bit = low)

•

Base address byte

•

Start signal

•

Slave address byte (R/W\ bit = high)

•

Data byte from base address

•

Stop signal

Read from four consecutive control registers:

•

Start signal

•

Slave address byte (R/W bit = low)

•

Base address byte

•

Start signal

•

Slave address byte (R/W bit = high)

•

Data byte from base address

•

Data byte from (base address + 1)

•

Data byte from (base address + 2)

•

Data byte from (base address + 3)

•

Stop signal

BIT 7

ACK

BIT 6

BIT 5

BIT 4

BIT 3

BIT 2

BIT 1

BIT 0

SDA

SCL

Figure 18. Serial Interface—Typical Byte Transfer

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