2011-08-09 23:51:20 +02:00
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/********************************************************************************************
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* arch/arm/src/kinetis/kinetis_osc.h
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*
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* Copyright (C) 2011 Gregory Nutt. All rights reserved.
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2012-09-13 20:32:24 +02:00
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* Author: Gregory Nutt <gnutt@nuttx.org>
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2011-08-09 23:51:20 +02:00
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* 3. Neither the name NuttX nor the names of its contributors may be
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* used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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********************************************************************************************/
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#ifndef __ARCH_ARM_SRC_KINETIS_KINETIS_OSC_H
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#define __ARCH_ARM_SRC_KINETIS_KINETIS_OSC_H
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/********************************************************************************************
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* Included Files
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********************************************************************************************/
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#include <nuttx/config.h>
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#include "chip.h"
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/********************************************************************************************
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* Pre-processor Definitions
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********************************************************************************************/
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/* Register Offsets *************************************************************************/
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#define KINETIS_OSC_CR_OFFSET 0x0000 /* OSC Control Register */
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/* Register Addresses ***********************************************************************/
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#define KINETIS_OSC_CR (KINETIS_OSC_BASE+KINETIS_OSC_CR_OFFSET)
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/* Register Bit Definitions *****************************************************************/
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/* OSC Control Register (8-bit) */
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#define OSC_CR_ERCLKEN (1 << 7) /* Bit 7: External Reference Enable */
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/* Bit 6: Reserved */
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#define OSC_CR_EREFSTEN (1 << 5) /* Bit 5: External Reference Stop Enable */
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/* Bit 4: Reserved */
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#define OSC_CR_SC2P (1 << 3) /* Bit 3: Oscillator 2 pF Capacitor Load Configure */
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#define OSC_CR_SC4P (1 << 2) /* Bit 2: Oscillator 4 pF Capacitor Load Configure */
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#define OSC_CR_SC8P (1 << 1) /* Bit 1: Oscillator 8 pF Capacitor Load Configure */
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#define OSC_CR_SC16P (1 << 0) /* Bit 0: Oscillator 16 pF Capacitor Load Configure */
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/********************************************************************************************
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* Public Types
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********************************************************************************************/
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/********************************************************************************************
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* Public Data
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********************************************************************************************/
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/********************************************************************************************
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* Public Functions
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********************************************************************************************/
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#endif /* __ARCH_ARM_SRC_KINETIS_KINETIS_OSC_H */
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