Register map description of the XENSIVTM PAS
CO2
About this document
Scope and purpose
This application note provides a detailed description of the register map of XENSIVTM PAS CO2.
Table of contents
About this document ....................................................................................................................... 1
Table of contents ............................................................................................................................ 1
1 Register map access method ................................................................................................... 2
2 Register map ......................................................................................................................... 3
3 Description of different registers ............................................................................................. 4
3.1 Product and revision ID register (PROD_ID) ........................................................................................... 4
3.2 Sensor status register (SENS_STS) ......................................................................................................... 5
3.3 Measurement period configuration registers (MEAS_RATE_H and MEAS_RATE_L) ............................. 7
3.4 Measurement mode configuration register (MEAS_CFG) ...................................................................... 9
3.5 CO2 concentration result register (CO2PPM_H and CO2PPM_L) ......................................................... 11
3.6 Measurement status register (MEAS_STS) ........................................................................................... 12
3.7 Interrupt pin configuration register (INT_CFG) .................................................................................... 14
3.8 Alarm threshold register (ALARM_TH_H and ALARM_TH_L) ............................................................... 16
3.9 Pressure compensation registers (PRES_REF_H and PRES_REF_L) ................................................... 17
3.10 Automatic baseline offset compensation reference ............................................................................ 18
3.11 Scratch pad register (SCRATCH_PAD) .................................................................................................. 19
3.12 Soft reset register (SENS_RST) ............................................................................................................. 20
Revision history............................................................................................................................. 21