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VD5377 датащи(PDF) 53 Page - STMicroelectronics

номер детали VD5377
подробное описание детали  Ultra-low power motion sensor for optical finger navigation (OFN)
PDF  88 Pages
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производитель  STMICROELECTRONICS [STMicroelectronics]
домашняя страница  http://www.st.com
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VD5377 датащи(HTML) 53 Page - STMicroelectronics

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VD5377
Basic start-up information
8.5
Revision ID
The major and minor revision registers can be used to identify different revisions of the
VD5377 silicon as shown in Table 30. Currently, only two revisions exist: rev 1.0 (0.0) and
rev 2.0 (1.0). Register 0x90 is the device ID and returns 0x4d (77 dec) when read.
8.6
Soft reset
In Table 31 clearing register 0x16 bit 0 (software_reset_n) initiates an internal reset. All
registers are initialized and the MCU performs a reboot. This is equivalent to a power-on
reset.
Table 30. Major/minor revision registers
Addr
(Hex)
Register name
Signal name
Bit
Type
Default
(Hex)
Comment
0
MAJOR_REVISION
major_revision
7:0
PR
01
Major hardware revision
number. Updated in case of
full mask regeneration.
0 = rev 1.x
1 = rev 2.x
2 = rev 3.x
x = minor revision
1
MINOR_REVISION
minor_revision
7:0
RW
00
Minor hardware revision
number. Updated in case of
metal fix and or ROM
changes.
0 = rev 0
1 = rev 1
2 = rev 2
90
DEVICE_ID
ucDeviceID
7:0
RW
4d
Device ID
0 = VD5376 (and previous)
77 = VD5377
Table 31. Soft reset
Addr
(Hex)
Register name
Signal name
Bit
Type
Default
(Hex)
Comment
16
RESETS
software_reset_n
0
PRWC
01
Software reset result in full
system reboot (active low -
auto cleared)
reserved
7:1
PRW
0f
Do not modify these bits.



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