NXP Semiconductors K32 L2A Series, Reference Manual, Page: 800 / 1379

LPTMRx_PSR field descriptions (continued)
Field Description
1110 Prescaler divides the prescaler clock by 32,768; glitch filter recognizes change on input pin after
16,384 rising clock edges.
1111 Prescaler divides the prescaler clock by 65,536; glitch filter recognizes change on input pin after
32,768 rising clock edges.
2
PBYP
Prescaler Bypass
When PBYP is set, the selected prescaler clock in Time Counter mode or selected input source in Pulse
Counter mode directly clocks the CNR. When PBYP is clear, the CNR is clocked by the output of the
prescaler/glitch filter. PBYP must be altered only when the LPTMR is disabled.
0 Prescaler/glitch filter is enabled.
1 Prescaler/glitch filter is bypassed.
PCS Prescaler Clock Select
Selects the clock to be used by the LPTMR prescaler/glitch filter. PCS must be altered only when the
LPTMR is disabled. The clock connections vary by device.
NOTE: See the chip configuration details for information on the connections to these inputs.
00 Prescaler/glitch filter clock 0 selected.
01 Prescaler/glitch filter clock 1 selected.
10 Prescaler/glitch filter clock 2 selected.
11 Prescaler/glitch filter clock 3 selected.
30.3.3 Low Power Timer Compare Register (LPTMRx_CMR)
Address: Base a 8h offset
Bit 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
R
0
COMPARE
W
Reset
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
LPTMRx_CMR field descriptions
Field Description
31–16
Reserved
This field is reserved.
This read-only field is reserved and always has the value 0.
COMPARE Compare Value
When the LPTMR is enabled and the CNR equals the value in the CMR and increments, TCF is set and
the hardware trigger asserts until the next time the CNR increments. If the CMR is 0, the hardware trigger
will remain asserted until the LPTMR is disabled. If the LPTMR is enabled, the CMR must be altered only
when TCF is set.
Memory map and register definition
K32 L2A Reference Manual, Rev. 2, 01/2020
800 NXP Semiconductors