Datasheet

MPL3115A2
Sensors
Freescale Semiconductor, Inc. 27
7.8 Barometric Pressure Input
7.8.1 BAR_IN_MSB, BAR_IN_LSB (0x14, 0x15)
Barometric input for altitude calculations. Input is equivalent sea level pressure for measurement location.
Value is input in 2 Pa units.
Units are input as unsigned 16-bit integers. The default value is 101,326 Pa. The default value can be changed by writing to
this register
7.9 Pressure/Altitude Target
7.9.1 P_TGT_MSB, P_TGT_LSB (0x16, 0x17)
Altitude/Pressure target value. This value works in conjunction with the window value (P_WND_MSB and P_WND_LSB).
In Altitude mode, the register value is 16-bit 2’s complement value in meters.
In Pressure mode, the value is 16-bit unsigned value in 2 Pa units.
7.10 Temperature Target
7.10.1 T_TGT (0x18)
Temperature target value input in 2’s complement value in °C.
Table 39. BAR_IN_MSB Register
7 6543210
R
BAR[15] BAR[14] BAR[13] BAR[12] BAR[11] BAR[10] BAR[9] BAR[8]
W
Reset11000101
Table 40. BAR_IN_LSB Register
7 6543210
R
BAR[7] BAR[6] BAR[5] BAR[4] BAR[3] BAR[2] BAR[1] BAR[0]
W
Reset11100111
Table 41. P_TGT_MSB Register
7 6543210
R
P_TGT15 P_TGT14 P_TGT13 P_TGT12 P_TGT11 P_TGT10 P_TGT9 P_TGT8
W
Reset00000000
Table 42. P_TGT_LSB Register
7 6543210
R
P_TGT7 P_TGT6 P_TGT5 P_TGT4 P_TGT3 P_TGT2 P_TGT1 P_TGT0
W
Reset00000000
Table 43. T_TGT Register
7 6543210
R
T_TGT7 T_TGT6 T_TGT5 T_TGT4 T_TGT3 T_TGT2 T_TGT1 T_TGT0
W
Reset00000000