STV-376-E02 查看數據表（PDF） - STMicroelectronics

零件编号

产品描述 (功能)

生产厂家

STV-376-E02

Ultra-low power motion sensor for optical finger navigation and laser mice

STMicroelectronics 

VT5376

I2C control register map

Table 9.

Index

address

I2C control register map (continued)

Bits

Name

R/W

[5] Rbin Low

RO

0x0C [6] Laser Low

RO

[7] Laser High

RO

[7] Force Laser Out ON (Compl) RW

0x0D

[6:0] DAC current setting (Compl)

RW

0x21 [7:0] X_motion

RO

0x22 [7:0] Y_motion

RO

[0] X Overflow

RO

0x23

[1] Y Overflow

RO

[3] No Motion

RO

Default

Description

0: Rbin above threshold

1: Rbin below threshold (shorted to

0h

GND)

Note: if Laser_Comp_Enable (reg

0x0B, bit [4]) = 0, Rbin_Low=1

0: Laser OUT above LOW threshold

1: Laser OUT below LOW threshold

0h

(shorted to GND).

Note: if Laser_Comp_Enable = 0,

Laser_Low = 1

0: Laser OUT below HIGH threshold

1: Laser OUT above HIGH threshold

0h

(shorted to VDD).

Note: if Laser_Comp_Enable = 0,

Laser_High = 1

If set to 0, this sets the LASER_OUT

DAC always ON (instead of toggling

normally). This mode is provided in

1h

case the DAC current needs

calibrating. To confirm this mode,

register 0x0A will also need to be

written to (complement data).

00h (laser

0x7F (LED)

Sets DAC current setting. To validate

the setting, register 0x0A will also

need to be written to (complement

data). With Rbin = 12 Kohms,

0x00: 3.4mA

0x7F: 10mA

This register holds the overall X

movement data since last polling was

done.

Value is 8 bit 2’s complement.(1)

This register holds the overall Y

movement data since last polling was

done.

Value is 8 bit 2’s complement.(1)

0h

This register records if the X-motion

integrator has reached its limit.

0h

This register records if the Y-motion

integrator has reached its limit.

0h

This bit is asserted if both X/Y

integrators are empty

Doc ID 13939 Rev 4

15/31

Share Link: