VT5376 datasheet(12/30 Pages) STMICROELECTRONICS

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I2C control register map

VT5376

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I2C control register map

Table 7.

I2C control register map

Address

Bits

Name

R/W

Default

Description

0x00

[7:0]

Device Hardware revision

00h

HW revision: set by the mask set

revision

0x01

[7:0]

Device Soft revision

01h

FW revision: is updated every time

internal firmware of minor revision is

done.

0x05

[0]

Automatic Power management

When set, the device controls its own

power mode state machine in no

motion condition. If not set,

POWERDOWN controls the state of

the device (standby/run)

[1]

Laser Selected

When set, the device sets all internal

variables to optimize the system for

laser illumination.

If set, LASER_OUT is actived to direct

drive a VCSEL, and LASER_NEN

controls its power supply switch.

If not set, LASER_NEN becomes the

LED_ON signal, toggling at frame

rate.

[2]

Use External Supply

1: The device switches its internal

1.8 V regulator off, and assumes 1.8 V

will be supplied at all times to Vtop,

DVDD and AVDD. VBat can also be

supplied by the same 1.8V or from a

single battery.

0: Device uses internal regulators

(Vtop must be set

>= 2.2V).

[3]

Host Config Done

This bit must be set to 1 to indicate to

the chip that the boot configuration of

the sensor (mainly this register) is

complete, and it can start motioning.

[5]

Led dac driven

If set to 1, and the chip is set in LED

mode, then the LED is direct driven by

the internal DAC.

[7]

fw idle state

If enabled the MCU firmware will go

into an idle mode (I2C commands still

available).

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