NXP Semiconductors
UM11227
NTM88 family of tire pressure monitor sensors
UM11227 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2020. All rights reserved.
User manual Rev. 6 — 24 April 2020
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Table 76. LF sampling time interval selection
LFSTM[3:0] Clock Cycles ~ Time ms
0 0 0 0 Continuous ON
0 0 0 1 16 16
0 0 1 0 32 32
0 0 1 1 64 64
0 1 0 0 128 128
0 1 0 1 256 256
0 1 1 0 512 512
0 1 1 1 1024 1024
1 0 0 0 2048 2048
1 0 0 1 4096 4096
1 0 1 0 — 1 1 1 1 Continuous ON
Table 77. LF sampling on time selection
LFONTM[3:0] Clock Cycles ~ Time ms
0 0 0 0 1 1
0 0 0 1 2 2
0 0 1 0 4 4
0 0 1 1 8 8
0 1 0 0 16 16
0 1 0 1 32 32
0 1 1 0 64 64
0 1 1 1 128 128
1 0 0 0 256 256
1 0 0 1 512 512
1 0 1 0 — 1 1 1 1 1024 1024
10.15.17.3 LF control 3 register (LFCTL3)
Table 78. LF control 3 register (LFCTL3) (address $0022)
Bit 7 6 5 4 3 2 1 0
R LFDO
W —
TOGMOD SYNC1 SYNC0 LFCDTM3 LFCDTM2 LFCDTM1 LFCDTM0
Reset U U U U U U U U
POR ($32) 0 0 1 1 0 0 1 0
LFR Soft
Reset
U 0 1 1 0 0 1 0
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