NXP Semiconductors
FXPS7115D4
Digital absolute pressure sensor, 40 kPa to 115 kPa
required to always read the registers in sequence, SNSDATA0_L register first, followed
by the SNSDATA0_H register.
Table 77.ꢀSNSDATA0_L, SNSDATA0_H - sensor data #0 registers (addresses 62h, 63h) bit allocation
Location
Address
62h
Bit
Symbol
7
6
5
4
3
2
1
0
SNSDATA0_L
SNSDATA0_H
SNSDATA0_L[7:0]
SNSDATA0_H[15:8]
63h
Factory default
Access
0
0
0
0
0
0
0
0
R
R
R
R
R
R
R
R
7.7.19 SNSDATA1_L, SNSDATA1_H - sensor data #1 registers (address 64h, 65h)
The sensor data #1 registers are read-only registers that contain the 16-bit sensor
data. See Section 7.3.4.4 "Absolute pressure output data scaling equation" for details
regarding the 16-bit sensor data.
The SNSDATA1_H register value is latched on a read of the SNSDATA1_L register
value until the SNSDATA1_H register is read. To avoid data mismatch, the user is
required to always read the registers in sequence, SNSDATA1_L register first, followed
by the SNSDATA1_H register.
Table 78.ꢀSNSDATA1_L, SNSDATA1_H - sensor data #1 registers (address 64h, 65h) bit allocation
Location
Address
64h
Bit
Symbol
7
6
5
4
3
2
1
0
SNSDATA1_L
SNSDATA1_H
SNSDATA1_L[7:0]
SNSDATA1_H[15:8]
65h
Factory default
Access
0
0
0
0
0
0
0
0
R
R
R
R
R
R
R
R
7.7.20 SNSDATA0_TIMEx - time stamp registers (address 66h to 6Bh)
The sensor data 0 time stamp registers are read-only registers that contain a 48-bit time
stamp.
The value of the 48-bit free running timer register is copied to the sensor data 0 time
stamp registers each time sensor data 0 data is latched for transmission. The time stamp
is updated at the start of the sensor data 0 register value transmission for a register read
of the SNSDATA0_L register.
The time stamp register is organized to allow for optimized reading of the time stamp in
I2C automatic sensor data register read wrap-around mode as documented in Table 8.
The sensor data 0 time stamp registers are read-only registers that contain a 48-bit time
stamp.
The value of the 48-bit free running timer register is copied to the sensor data 0 time
stamp registers each time sensor data 0 data is latched for transmission via SPI.
FXPS7115D4
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© NXP B.V. 2019. All rights reserved.
Product data sheet
Rev. 3 — 5 December 2019
47 / 72
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