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AS7331 データシート(PDF) 51 Page - ams-OSRAM AG

部品番号 AS7331
部品情報  Spectral UVA/B/C Sensor
PDF  72 Pages
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メーカー  AMSOSRAM [ams-OSRAM AG]
ホームページ  https://ams-osram.com/
Logo AMSOSRAM - ams-OSRAM AG

AS7331 データシート(HTML) 51 Page - ams-OSRAM AG

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AS7331
Register Description
Datasheet
• PUBLIC
DS001047
• v4-00 • 2023-Mar-24
71
│ 50
be stopped immediately. The DOS sequence,
“NOP”, (00Xb or 1XXb) does not change the operational
state, but the values of the other written OSR bits are effective.
Setting SW_RES to
“1” causes a software reset of the AS7331. A running measurement stops
immediately and the AS7331 is set to the configuration state and all registers are reset to their initial
values. The start of measurement is controlled by the value of bit SS. This bit is only interpreted in the
measurement state.
The power down mode is controlled by the value of the PD bit.
The power down takes effect in both operational states: configuration and measurement. If the power
down state is switched on while the device is in measurement state, the power down is only performed
during the breaks between two conversions.
Figure 46:
Examples for Programming the Operational State Registers at Address 0h
Operational State
0
1
-
-
0
0
1
0
Configuration state (Power Down state
switched on)
42h
0
0
-
-
0
0
1
0
Configuration state (Power Down state
switched off)
02h
0
0
-
-
0
0
1
1
Measurement state (Power Down state
switched off)
03h
1
0
-
-
0
0
1
1
Measurement state and Start of
measurement (Power Down state switched
off)
83h
1
0
-
-
0
0
0
0
Provided that Measurement state is active
–
Start of measurement (Power Down state
switched off)
80h
0
1
-
-
0
0
1
1
Measurement state (Power Down state
switched on)
43h
1
1
-
-
0
0
1
1
Measurement state, Start of measurement
and interna
l startup (“overwrite” of PD = “1”)
C3h
1
1
-
-
0
0
0
0
Provided that Measurement state is active
–
Start of measurement and internal startup
(“overwrite” of PD = "1“)
C0h
(0)
(1)
-
-
1
(0)
(1)
(0)
Software reset
0Ah
8.2.2
API Generation Register - AGEN (Address 2h)
The value of this read-only register indicates the generation of the Control Register Bank. The
register’s value changes whenever any formal modification is introduced to the Control Register Bank.



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