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參數(shù)資料
| 型號： | VM6101 |
| 廠商： | 意法半導(dǎo)體 |
| 英文描述： | IC color light sensor |
| 中文描述： | 余C顏色光傳感器 |
| 文件頁數(shù)： | 7/17頁 |
| 文件大小： | 159K |
| 代理商： | VM6101 |
VM6101
Functional description
7/17
Figure 4.
PWM duty cycle versus illumination
2.4
Two-wire serial interface
The VM6101 two-wire serial interface supports the following features:
Standard-mode (100 kHz) I2C slave controller supporting 8-bit addressing
(7-bit address = 0x10 or 0010 000). SMBus compliant.
Data and clock deglitching filters (double sampling)
8-bit index, i.e. 256 on-chip register address space
Multiple read or write with index auto-increment
Alternate address (0x11) selectable
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2.4.1
Message types
The VM6101 registers are accessed by serial bus byte-oriented transactions. The following
message types are supported:
Master write:
<S> <addr><w><A> <index><A> <data><A>[<data><A>...<data><A>]<P>
Master read:
<S> <addr><r><A> [<data><A>...<data><A>]<data><nA><P>
Combined format:
<S> <addr><w><A> <index><A>
<Sr> <addr><r><A> [<data><A>...<data><A>]<data><nA><P>
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where:
S= start, Sr = repeated start, P= stop, A= acknowledge, nA= negative acknowledge
addr= 7-bit slave address, w= write bit (0), r= read bit (1),
index= 8-bit register address,
data= 8-bit register data, []= optional.
-0.2
0.0
-0.2
0.2
0.0
0.4
0.2
0.6
0.4
0.8
0.6
1.0
0.8
1.2
1.0
1E+00
10E+00
100Illuminance (lx)
Illumination (lx)
1E+03
10E+03
100E+03
D
PWM_SENS = 18
PWM_SENS = 9
1.2
1E+00
10E+00
100E+00
1E+03
10E+03
100E+03
D
PWM_SENS = 18
PWM_SENS = 9
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