/******************************************************************************************** * arch/arm/src/kinetis/kinetis_osc.h * * Copyright (C) 2011 Gregory Nutt. All rights reserved. * Author: Gregory Nutt * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in * the documentation and/or other materials provided with the * distribution. * 3. Neither the name NuttX nor the names of its contributors may be * used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. * ********************************************************************************************/ #ifndef __ARCH_ARM_SRC_KINETIS_KINETIS_OSC_H #define __ARCH_ARM_SRC_KINETIS_KINETIS_OSC_H /******************************************************************************************** * Included Files ********************************************************************************************/ #include #include "chip.h" /******************************************************************************************** * Pre-processor Definitions ********************************************************************************************/ /* Register Offsets *************************************************************************/ #define KINETIS_OSC_CR_OFFSET 0x0000 /* OSC Control Register */ /* Register Addresses ***********************************************************************/ #define KINETIS_OSC_CR (KINETIS_OSC_BASE+KINETIS_OSC_CR_OFFSET) /* Register Bit Definitions *****************************************************************/ /* OSC Control Register (8-bit) */ #define OSC_CR_ERCLKEN (1 << 7) /* Bit 7: External Reference Enable */ /* Bit 6: Reserved */ #define OSC_CR_EREFSTEN (1 << 5) /* Bit 5: External Reference Stop Enable */ /* Bit 4: Reserved */ #define OSC_CR_SC2P (1 << 3) /* Bit 3: Oscillator 2 pF Capacitor Load Configure */ #define OSC_CR_SC4P (1 << 2) /* Bit 2: Oscillator 4 pF Capacitor Load Configure */ #define OSC_CR_SC8P (1 << 1) /* Bit 1: Oscillator 8 pF Capacitor Load Configure */ #define OSC_CR_SC16P (1 << 0) /* Bit 0: Oscillator 16 pF Capacitor Load Configure */ /******************************************************************************************** * Public Types ********************************************************************************************/ /******************************************************************************************** * Public Data ********************************************************************************************/ /******************************************************************************************** * Public Functions ********************************************************************************************/ #endif /* __ARCH_ARM_SRC_KINETIS_KINETIS_OSC_H */