L5955

Functional description

13/17

3.2

Chip address byte:

3.3

Data byte:

Default mode is 0000 0000 which corresponds to all outputs being off, low power mode.

Table 5.

Chip address byte

Chip address

Read/write

A7

A6

A5

A4

A3

A2

A1

A0

0

0010

00

0

Table 6.

Data byte

b7

b6

b5

b4

b3

b2

b1

b0

Data byte 0

REG6 SET

REG5 SET2

REG5 SET1

REG4 SET

HSD3EN

HSD2EN0

HSD1EN0

Data byte 1

REG6EN

REG5EN

REG4EN

REG2EN

REG1EN

Table 7.

Data byte 0 description

Name

Description

State

Definition

bit

REG6 SET

REG6 output voltage configuration

01.8V

b7

12.5V

b7

REG5 SET1

REG5 SET2

REG5 output voltage configuration

00

5.0V

b5, b6

01

3.3V

b5, b6

10

1.8V

b5, b6

11

x

b5, b6

REG4 SET

REG4 output voltage configuration

08.0V

b4

1

10.0V

b4

HSD3EN

HSD3 Enable

0Off

b2

1On

b2

HSD2EN

HSD2 Enable

0Off

b1

1On

b1

HSD1EN

HSD1 Enable

0Off

b0

1On

b0