vt5376 STMicroelectronics, vt5376 Datasheet - Page 11

• Manufacturer Part Number: vt5376
• Description: Ultra-low Power Laser Motion Sensor For Laser Mouse Applications
• Manufacturer: STMicroelectronics

VT5376
Note:
Note:
Figure 6.
As mentioned in the previous example, the read message is terminated with a negative
acknowledge (A) from the master.
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.
An auto-increment write is assumed if no stop condition occurs.
Figure 7.
Multiple location read: reading motion value example
Multiple locations can be read within a single read message. An auto-increment write is
assumed.
Registers are read until the master Nacks the data.
Figure 8.
S
20
S
h
Single read
Multiple location write
Multiple location read: reading motion
S
No data write
20
A
h
20
No data write
h
A
21
A
h
20
A
h
07
Sr
h
A
21
A
Sr
h
@ index = 07
data written
21
A
h
11
Incremental read
Xmotion
Incremental write
A
A
15
Read data
@ index = 08
data written
from the master
A
C1
Ymotion
NAck
A
P
A
Interface
P
A
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P