OSCx_CR field descriptions (continued)Field Description0 External reference clock is inactive.1 External reference clock is enabled.6ReservedThis field is reserved.This read-only field is reserved and always has the value 0.5EREFSTENExternal Reference Stop EnableControls whether or not the external reference clock (OSCERCLK) remains enabled when MCU entersStop mode.0 External reference clock is disabled in Stop mode.1 External reference clock stays enabled in Stop mode if ERCLKEN is set before entering Stop mode.4ReservedThis field is reserved.This read-only field is reserved and always has the value 0.3SC2POscillator 2 pF Capacitor Load ConfigureConfigures the oscillator load.0 Disable the selection.1 Add 2 pF capacitor to the oscillator load.2SC4POscillator 4 pF Capacitor Load ConfigureConfigures the oscillator load.0 Disable the selection.1 Add 4 pF capacitor to the oscillator load.1SC8POscillator 8 pF Capacitor Load ConfigureConfigures the oscillator load.0 Disable the selection.1 Add 8 pF capacitor to the oscillator load.0SC16POscillator 16 pF Capacitor Load ConfigureConfigures the oscillator load.0 Disable the selection.1 Add 16 pF capacitor to the oscillator load.25.8 Functional DescriptionThis following sections provide functional details of the module.25.8.1 OSC Module StatesThe states of the OSC module are shown in the following figure. The states and theirtransitions between each other are described in this section.Functional DescriptionKL25 Sub-Family Reference Manual, Rev. 3, September 2012410 Freescale Semiconductor, Inc.
