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LPS27HHTW 数据表(PDF) 39 Page - STMicroelectronics

部件名 LPS27HHTW
功能描述  MEMS pressure sensor: 260-1260 hPa absolute digital output barometer with embedded temperature sensor in water-resistant package
PDF  55 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

LPS27HHTW 数据表(HTML) 39 Page - STMicroelectronics

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9.8
CTRL_REG3 (12h)
Control register 3 - INT_DRDY pin control register (R/W)
7
6
5
4
3
2
1
0
0
0
INT_F_FULL
INT_F_WTM
INT_F_OVR
DRDY
INT_S1
INT_S0
INT_F_FULL
FIFO full flag on INT_DRDY pin. Default value: 0
(0: FIFO empty; 1: FIFO full - 128 unread samples)
INT_F_WTM
FIFO threshold (watermark) status on INT_DRDY pin. Default value: 0
(0: FIFO is lower than FTH level; 1: FIFO is equal to or higher than FTH level)
INT_F_OVR
FIFO overrun status on INT_DRDY pin. Default value: 0
(0: not overwritten; 1: at least one sample in the FIFO has been overwritten)
DRDY
Data-ready signal on INT_DRDY pin. Default value: 0
(0: disable; 1: enable)
INT_S[1:0]
Data signal on INT_DRDY pin control bits. Default value: 00
Refer to Table 21.
Table 21. Interrupt configurations
INT_S1
INT_S0
INT_DRDY pin configuration
0
0
Data signal (in order of priority: DRDY or INT_F_WTM or INT_F_OVR or INT_F_FULL)
0
1
Pressure high (P_high)
1
0
Pressure low (P_low)
1
1
Pressure low OR high
Figure 26. Interrupt events on INT_DRDY pin
New data set is available
FIFO Threshold (Watermark)
FIFO Overrun
FIFO Full
DRDY
INT_F_WTM
INT_F_OVR
INT_F_FULL
Pressure higher than threshold
Pressure lower than threshold
00
INT_S[1:0]
01
10
11
INT_DRDY pin
CTRL_REG3 (@12h)
LPS27HHTW
CTRL_REG3 (12h)
DS13489 - Rev 1
page 39/55



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