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VD5377CBSW 数据表(PDF) 66 Page - STMicroelectronics

部件名 VD5377CBSW
功能描述  Ultra-low power motion sensor for optical finger navigation (OFN)
PDF  88 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

VD5377CBSW 数据表(HTML) 66 Page - STMicroelectronics

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Doc ID 022952 Rev 2
Figure 31. Single read
As mentioned in the previous example, the read message is terminated with a negative
acknowledge (A) from the master.
11.4.3
Multiple location write
It is possible to write data bytes to consecutive adjacent internal registers without having to
send explicit indexes prior to sending each data byte.
Note:
An auto-increment write is assumed if no stop condition occurs.
Figure 32. Multiple location write
11.4.4
Multiple location read
Multiple locations can be read within a single read message. An auto-increment write is
assumed.
Note:
Registers are read until the master NAcks the data.
Figure 33. Multiple location read: reading motion
Note:
When reading X/Y motion data a multiple read must be performed.
S
A
Sr
A
A
A6h
2Ah
A7h
16
No data write
Read data
from the master
NAck
P
A
Master
Slave
SA
11
A
AA
A6h
07h
C1
Incremental write
P
data written
@ index = 08
data written
@ index = 07
Master
Slave
Incremental read
SA
A
A6h
21h
Sr
X motion
Y motion
No data write
AA
P
A
A7h
Master
Slave



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