Section number Title Page32.2 Signal description..........................................................................................................................................................57432.3 Memory map/register description.................................................................................................................................57532.3.1 PIT Module Control Register (PIT_MCR)..................................................................................................57532.3.2 PIT Upper Lifetime Timer Register (PIT_LTMR64H)...............................................................................57732.3.3 PIT Lower Lifetime Timer Register (PIT_LTMR64L)...............................................................................57732.3.4 Timer Load Value Register (PIT_LDVALn)...............................................................................................57832.3.5 Current Timer Value Register (PIT_CVALn).............................................................................................57832.3.6 Timer Control Register (PIT_TCTRLn)......................................................................................................57932.3.7 Timer Flag Register (PIT_TFLGn)..............................................................................................................58032.4 Functional description...................................................................................................................................................58032.4.1 General operation.........................................................................................................................................58032.4.2 Interrupts......................................................................................................................................................58232.4.3 Chained timers.............................................................................................................................................58232.5 Initialization and application information.....................................................................................................................58232.6 Example configuration for chained timers....................................................................................................................58332.7 Example configuration for the lifetime timer...............................................................................................................584Chapter 33Low-Power Timer (LPTMR)33.1 Introduction...................................................................................................................................................................58733.1.1 Features........................................................................................................................................................58733.1.2 Modes of operation......................................................................................................................................58733.2 LPTMR signal descriptions..........................................................................................................................................58833.2.1 Detailed signal descriptions.........................................................................................................................58833.3 Memory map and register definition.............................................................................................................................58833.3.1 Low Power Timer Control Status Register (LPTMRx_CSR)......................................................................58933.3.2 Low Power Timer Prescale Register (LPTMRx_PSR)................................................................................59033.3.3 Low Power Timer Compare Register (LPTMRx_CMR).............................................................................59233.3.4 Low Power Timer Counter Register (LPTMRx_CNR)...............................................................................592KL25 Sub-Family Reference Manual, Rev. 3, September 2012Freescale Semiconductor, Inc. 23
