NXP Semiconductors
FXTH87E
FXTH87E, Family of Tire Pressure Monitor Sensors
Address
$0033
$0034
$0035
$0036
$0037
$0038
Register Name
RFCR3
Bit 7
6
5
4
3
2
1
Bit 0
DATA
IFPD
ISPC
IFID
FNUM[3:0]
RFCR4
RFBT[7:0]
RFCR5
BOOST
LFSR[6:0]
RFCR6
VCO_GAIN[1:0]
RFFT[5:0]
RFCR7
RFIF
RFEF
RFVF
RFIAK
RFIEN
RFLVDEN
RCTS
RFMRST
VCD_EN
EPR
—/VCD3
PLL_LPF_[2:0]/VCD[2:0]
PA_
SLOPE
$0039
$003A
$003B
$003C
$003D
$003E
$003F
$0040
$0041
$0042
$0043
$0044
$0045
$0046
$0047
$0048
$0049
$004A
$004B
$004C
$004D
$004E
$004F
Reserved
Reserved
Reserved
RFD0
RFD[135:128]
RFD1
RFD[143:136]
RFD[151:144]
RFD[159:152]
RFD[167:160]
RFD[175:168]
RFD[183:176]
RFD[191:184]
RFD[199:192]
RFD[207:200]
RFD[215:208]
RFD[223:216]
RFD[231:224]
RFD[239:232]
RFD[247:240]
RFD[255:248]
RFD2
RFD3
RFD4
RFD5
RFD6
RFD7
RFD8
RFD9
RFD10
RFD11
RFD12
RFD13
RFD14
RFD15
Reserved
Reserved
Reserved
Reserved
Note: Shaded bits are recommended to only be controlled by firmware or factory test.
6.4 High address registers
High-page registers are used much less often, so they are located above $1800 in
the memory map. This leaves more room in the direct page for more frequently used
registers and variables. The registers control system level features as given in Table 12.
Table 12.ꢀMCU high address register summary
Address
Register Name
Bit 7
POR
0
6
5
COP
0
4
ILOP
0
3
2
1
LVD
Bit 0
0
$1800
SRS
PIN
ILAD
0
PWU
0
$1801
SBDFR
0
0
BDFR
$1802
SIMOPT1
COPE
COPCLKS
STOPE
RFEN
TRE
TRH
BKGDPE
FXTH87ERM
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© NXP B.V. 2019. All rights reserved.
Reference manual
Rev. 5.0 — 4 February 2019
22 / 183
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