NXP Semiconductors
FXPS7115D4
Digital absolute pressure sensor, 40 kPa to 115 kPa
Table 60.ꢀI2C_ADDRESS - I2C slave address register (address 3Fh) bit allocation
Bit
7
6
5
4
3
2
1
0
Symbol
I2C_ADDRESS[7:0]
Factory Default (stored value)
Factory Default (read value)
Access
0
0
0
1
0
1
0
0
0
0
0
0
0
0
0
0
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
The default register value is 00h. If the register value is 00h, the I2C slave address is
60h and a value of 60h is transmitted in response to a read command. If the register is
written to a value other than 00h, the I2C slave address is the lower seven bits of the
actual register value and the actual register value is transmitted in response to a read
command.
7.7.12 DSP Configuration Registers (DSP_CFG_Ux)
The DSP Configuration registers (DSP_CFG_Ux) are a series of registers that affect the
DSP data path.
There are 5 DSP Configuration registers, however, only DSP_CFG_U1, DSP_CFG_U4
and DSP_CFG_U5 are used when the device is in SPI or I2C mode. The DSP_CFG_U2
and DSP_CFG_U3 registers are for factory use only and are used for internal tests.
7.7.12.1 Self-test control bits
The self-test control bits select one of the various analog and digital self-test features of
the device as shown in the table below. The self-test control bits are not included in the
read/write array error detection.
Table 61.ꢀSelf-Test Control Bits (ST_CTRL[3:0])
ST_
ST_
ST_
ST_
Function
SNS_DATAx_X Contents (16-bit data)
CTRL[3]
CTRL[2]
CTRL[1]
CTRL[0]
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
Normal Pressure Signal
16-bit Absolute Pressure Data
16-bit Absolute Pressure Data
reserved
P-Cell Common Mode Verification
reserved
reserved
DSP write to SNS_DATAx_X registers inhibited.
DSP write to SNS_DATAx_X registers inhibited.
DSP write to SNS_DATAx_X registers inhibited.
DSP write to SNS_DATAx_X registers inhibited.
reserved
reserved
0000h
AAAAh
5555h
FFFFh
reserved
reserved
reserved
reserved
reserved
reserved
reserved
Digital Self-Test 0
Digital Self-Test Output
Digital Self-Test Output
Digital Self-Test Output
Digital Self-Test Output
Digital Self-Test 1
Digital Self-Test 2
Digital Self-Test 3
FXPS7115D4
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© NXP B.V. 2019. All rights reserved.
Product data sheet
Rev. 3 — 5 December 2019
41 / 72
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