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VT5376V032 数据表(PDF) 12 Page - STMicroelectronics

部件名 VT5376V032
功能描述  Ultra-low power laser motion sensor for laser mouse applications
PDF  30 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

VT5376V032 数据表(HTML) 12 Page - STMicroelectronics

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I2C control register map
VT5376
12/30
5
I2C control register map
Table 7.
I2C control register map
Address
Bits
Name
R/W
Default
Description
0x00
[7:0]
Device Hardware revision
RO
00h
HW revision: set by the mask set
revision
0x01
[7:0]
Device Soft revision
RW
01h
FW revision: is updated every time
internal firmware of minor revision is
done.
0x05
[0]
Automatic Power management
RW
0h
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
RW
0h
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
RW
0h
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
RW
0h
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
RW
0h
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
RW
0h
If enabled the MCU firmware will go
into an idle mode (I2C commands still
available).



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