NXP Semiconductors K32 L2A Series, Reference Manual, Page: 799 / 1379

30.3.2 Low Power Timer Prescale Register (LPTMRx_PSR)
Address: Base a 4h offset
Bit 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16
R
0
W
Reset 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Bit 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
R
0
PRESCALE PBYP PCS
W
Reset 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
LPTMRx_PSR field descriptions
Field Description
31–7
Reserved
This field is reserved.
This read-only field is reserved and always has the value 0.
6–3
PRESCALE
Prescale Value
Configures the size of the Prescaler in Time Counter mode or width of the glitch filter in Pulse Counter
mode. PRESCALE must be altered only when the LPTMR is disabled.
0000 Prescaler divides the prescaler clock by 2; glitch filter does not support this configuration.
0001 Prescaler divides the prescaler clock by 4; glitch filter recognizes change on input pin after 2 rising
clock edges.
0010 Prescaler divides the prescaler clock by 8; glitch filter recognizes change on input pin after 4 rising
clock edges.
0011 Prescaler divides the prescaler clock by 16; glitch filter recognizes change on input pin after 8
rising clock edges.
0100 Prescaler divides the prescaler clock by 32; glitch filter recognizes change on input pin after 16
rising clock edges.
0101 Prescaler divides the prescaler clock by 64; glitch filter recognizes change on input pin after 32
rising clock edges.
0110 Prescaler divides the prescaler clock by 128; glitch filter recognizes change on input pin after 64
rising clock edges.
0111 Prescaler divides the prescaler clock by 256; glitch filter recognizes change on input pin after 128
rising clock edges.
1000 Prescaler divides the prescaler clock by 512; glitch filter recognizes change on input pin after 256
rising clock edges.
1001 Prescaler divides the prescaler clock by 1024; glitch filter recognizes change on input pin after 512
rising clock edges.
1010 Prescaler divides the prescaler clock by 2048; glitch filter recognizes change on input pin after
1024 rising clock edges.
1011 Prescaler divides the prescaler clock by 4096; glitch filter recognizes change on input pin after
2048 rising clock edges.
1100 Prescaler divides the prescaler clock by 8192; glitch filter recognizes change on input pin after
4096 rising clock edges.
1101 Prescaler divides the prescaler clock by 16,384; glitch filter recognizes change on input pin after
8192 rising clock edges.
Table continues on the next page...
Chapter 30 Low-Power Timer (LPTMR)
K32 L2A Reference Manual, Rev. 2, 01/2020
NXP Semiconductors 799