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数据搜索系统，热门电子元器件搜索 |
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LPS25H 数据表(PDF) 22 Page - STMicroelectronics |
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LPS25H 数据表(HTML) 22 Page - STMicroelectronics |
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22 / 45 page  Register description LPS25H 22/45 DocID023722 Rev 5 7 Register description The device contains a set of registers which are used to control its behavior and to retrieve pressure and temperature data. The register address, made up of 7 bits, is used to identify them and to read/write the data through the serial interface. 7.1 REF_P_XL Reference pressure (LSB data) Address: 08h (R/W) Reset: 00h Description: The REF_P_XL register contains the lowest part of the reference pressure value that is sum to the sensor output pressure. The full reference pressure value is composed by REF_P_XL, REF_P_H & REF_P_L and is represented as 2’s complement. The reference pressure value can also be used to detect a measured pressure beyond programmed limits (see INT_CFD at 23h), and for Autozero function (see RESET_AZ bit, at 20h). 76 543 210 REFL7 REFL6 REFL5 REFL4 REFL3 REFL2 REFL1 REFL0 [7:0] REFL7-0: LSB reference pressure data |
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