NXP Semiconductors UM11227 - TPM1 Configuration Information; Block Diagram

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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– Set, clear, or toggle output compare action
– Selectable polarity on PWM outputs
16-BIT COMPARATOR
TPMMODH:TPMMO
TPMC0VH:TPMC0VL
MAIN 16-BIT COUNTER
16-BIT COMPARATOR
16-BIT LATCH
16-BIT COMPARATOR
TPMC1VH:TPMC1VL
16-BIT LATCH
CHANNEL 0
CHANNEL 1
aaa-032654
INTERNAL BUS
PORT
LOGIC
PORT
LOGIC
COUNTER RESET
PRESCALE AND SELECT
DIVIDE BY
1, 2, 4, 8, 16, 32, 64, or 128
CLOCK SOURCE
SELECT
OFF, BUS, XCLK, EXT
BUSCLK
SYNC
CLKSB
CPWMS
CLKSA PS2 PS1
TOF
TOIE
ELS0B ELS0A
MS0B MS0A
ELS1B ELS1A
MS1B MS1A
CH0F
CH1F
TPMCH0
TPMCH1
CH0IE
CH1IE
PS0
INTERRUPT
LOGIC
INTERRUPT
LOGIC
INTERRUPT
LOGIC
DX
Figure 17. Timer pulse-width block diagram
10.13.1 TPM1 configuration information
The device provides one two-channel timer/pulse-width modulator (TPM1).
An easy way to measure the low frequency oscillator (LFO) is to connect the LFO directly
to TPM1 channel 0. The LFOSEL bit in the SOPTZ determines whether TPM1CH0 is
connected to PTAZ or the LFO.
TPM1 clock source selection for the TPM1 is shown in the following table.
Table 44. TPM1 clock source selection
CLKSB CLKSA Clock Source
0 0 No source; TPM1 disabled
0 1 BUSCLK
1 0 unused
1 1 Internal DX pin
10.13.1.1 Block diagram
Figure 17 shows the structure of a TPM1.