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ILPS22QS датащи(PDF) 43 Page - STMicroelectronics

номер детали ILPS22QS
подробное описание детали  Dual full-scale, 1260 hPa and 4060 hPa, absolute digital output barometer with embedded Qvar electrostatic sensor
PDF  57 Pages
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производитель  STMICROELECTRONICS [STMicroelectronics]
домашняя страница  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

ILPS22QS датащи(HTML) 43 Page - STMicroelectronics

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9.13
I3C_IF_CTRL (19h)
Control register (R/W)
7
6
5
4
3
2
1
0
1
0
ASF_ON
0
0
0
I3C_Bus_
Avb_Sel1
I3C_Bus_
Avb_Sel0
ASF_ON
Enable anti-spike filters. Default value: 0
(0: anti-spike filters are managed by protocol and turned off after the broadcast address;
1: anti-spike filters on SCL and SDA lines are always enabled)
I3C_Bus_Avb_Sel[1:0]
These bits are used to select the bus available time when I3C IBI is used.
Default value: 00
(00: bus available time equal to 50 µsec;
01: bus available time equal to 2 µsec;
10: bus available time equal to 1 msec;
11: bus available time equal to 25 msec)
9.14
RPDS_L (1Ah)
Pressure offset (LSB data)
7
6
5
4
3
2
1
0
RPDS7
RPDS6
RPDS5
RPDS4
RPDS3
RPDS2
RPDS1
RPDS0
RPDS[7:0]
This register contains the low part of the pressure offset value.
Default value: 00000000
The pressure offset value is 16-bit data that can be used to implement one-point calibration (OPC) after soldering.
This value is composed of RPDS_H (1Bh) and RPDS_L (1Ah). The value is expressed as two's complement.
The customer can perform a one-point calibration after soldering (recommended) and the offset coefficient can be
stored for OPC in register RPDS (1Ah, 1Bh). These stored offset values are directly added to the compensated
pressure data in the block diagram below. To give better flexibility to the user, the OPC value can be written twice
in the same register map.
Figure 23. One-point calibration
ILPS22QS
I3C_IF_CTRL (19h)
DS13431 - Rev 3
page 43/57



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