AD9882ASLASHPCB datasheet(34/40 Pages) AD

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AD9882A

Rev. 0 | Page 34 of 40

Serial Interface Read/Write Examples

Example 1. Write to one control register

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Start signal

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Slave address byte (R/W bit = LOW)

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Base address byte

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Data byte to base address

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Stop signal

Example 2. Write to four consecutive control registers

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Start signal

•

Slave address byte (R/W bit = LOW)

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Base address byte

•

Data byte to base address

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Data byte to (base address + 1)

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Data byte to (base address + 2)

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Data byte to (base address + 3)

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Stop signal

Example 3. Read from one control register

•

Start signal

•

Slave address byte (R/W bit = LOW)

•

Base address byte

•

Start signal

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Slave address byte (R/W bit = HIGH)

•

Data byte from base address

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Stop signal

Example 4. 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

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Data byte from (base address + 1)

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Data byte from (base address + 2)

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Data byte from (base address + 3)

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Stop signal

Table 53. Control of the Sync Block Muxes via the Serial Register

Mux Number(s)

Serial Bus Control Bit

Control Bit State

Result

1 and 2

0x10: Bit 3

Pass Hsync

Pass sync-on-green

0x10: Bit 0

Pass Vsync

Pass sync separator signal

4, 5, and 6

0x0F: Bit 1

Pass analog interface signals

Pass digital interface signals

AD9882A/PCB Datasheet(PDF) 34 Page - Analog Devices

AD9882A/PCB Datasheet(HTML) 34 Page - Analog Devices

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