SA3

SA2

SA1

SA0

0

1

0

A4

A3

A2

A1

A0

P

Register Write Command Frame

SCLK

SDATA

SCLK

SSC

A

A

Signal driven by Master.

For reference only.

Signal not driven; pull-down only.

D1

D0

P

D2

D5

D4

D3

D6

P

D7

0

Data Frame

SDATA

Bus

Park

Signal driven by Master.

For reference only.

Signal not driven; pull-down only.

SA3

SA2

SA1

SA0

1

P

Data

SDATA

SCLK

Slave Address

0

D1

D0

D2

D5

D4

D3

D6

SSC

Bus

Park

Parity

LM3279

www.ti.com

SNVS970C – MARCH 2013 – REVISED OCTOBER 2014

Programming (continued)

Programming the VSET_CTRL register dynamically adjusts the Buck-Boost output voltage. The feedback voltage

the LM3279 for PWM or into PWM and PFM mode.

7.5.2 Supported Command Sequences

Figure 19. Register 0 Write

Figure 20. Register Write

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