HP206C Datasheet, PDF (12/17 Pages) List of Unclassifed Manufacturers – PRECISION BAROMETER AND ALTIMETER SENSOR

DataSheet
HP206C
For Example:
Offset
Hex Value
50.02 m
0x138A
-100.05 m 0XD8EB
ALT_OFF_MSB
0x13
0xD8
ALT_OFF_LSB
0x8A
0xEB
6.2 Setup the Events Detection Parameters
6.2.1 PA_H_TH_LSB, PA_H_TH_MSB - (RW)
The two registers form the 16-bit value of PA_H_TH which saves the pressure (or altitude) upper bound
threshold for event detection. When the PA_MODE bit in the INT_CFG register is set to 0, the contents
stored in these registers are the pressure thresholds. Its value should be a 16-bit unsigned number and its
unit is in 0.02 mbar. When setting the pressure thresholds, the user must divide the actual thresholds by
0.02, and then convert the result to a 2’s complement number. When the PA_MODE bit is set to 1, the
contents stored in these registers are the altitude thresholds. Its value should be a 16-bit 2’s complement
number and its unit is in meter.
For Example:
PA_MODE = 0 (pressure, unit in 0.02 mbar)
Threshold
800.06 mbar
900 mbar
Hex Value
0x9C43
0xAFC8
PA_H_TH_MSB
0x9C
0xAF
PA_H_TH_LSB
0x43
0xC8
PA_MODE = 1 (altitude, unit in meter)
Threshold Hex Value PA_H_TH_MSB PA_H_TH_LSB
5000 m
0x1388
0x13
0x88
These examples are also applied to setting the pressure (or altitude) middle and lower bound threshold
registers as introduced below.
6.2.2 PA_M_TH_LSB, PA_M_TH_MSB - (RW)
The two registers form the 16-bit value of PA_M_TH which saves the pressure (or altitude) middle threshold
for event detection. Similar to the PA_H_TH, the meaning of their values and the data formats are selected
by the PA_MODE bit.
6.2.3 PA_L_TH_LSB, PA_L_TH_MSB - (RW)
The two registers form the 16-bit value of PA_L_TH which saves the pressure (or altitude) lower bound
threshold for event detection. Similar to the PA_H_TH, the meaning of their values and the data formats are
selected by the PA_MODE bit.
6.2.4 T_H_TH - (RW)
This register stores the 8-bit temperature threshold for event detection. The data is in 2’s complement
format and the unit is in ℃.
For Example:
Threshold
45℃
-20℃
Hex Value
0x2D
0xEC
T_H_TH
0x2D
0xEC
These examples are also applied for setting the temperature middle and lower bound threshold registers as
introduced below.
6.2.5 T_M_TH - (RW)
This register stores the 8-bit temperature middle threshold for event detection. The data is in 2’s
complement format and the unit is in ℃.
6.2.6 T_L_TH - (RW)
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