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//*****************************************************************************

//

// hw_comp.h - Macros used when accessing the comparator hardware.

//

// Copyright (c) 2005,2006 Luminary Micro, Inc.  All rights reserved.

//

// Software License Agreement

//

// Luminary Micro, Inc. (LMI) is supplying this software for use solely and

// exclusively on LMI's Stellaris Family of microcontroller products.

//

// The software is owned by LMI and/or its suppliers, and is protected under

// applicable copyright laws.  All rights are reserved.  Any use in violation

// of the foregoing restrictions may subject the user to criminal sanctions

// under applicable laws, as well as to civil liability for the breach of the

// terms and conditions of this license.

//

// THIS SOFTWARE IS PROVIDED "AS IS".  NO WARRANTIES, WHETHER EXPRESS, IMPLIED

// OR STATUTORY, INCLUDING, BUT NOT LIMITED TO, IMPLIED WARRANTIES OF

// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE APPLY TO THIS SOFTWARE.

// LMI SHALL NOT, IN ANY CIRCUMSTANCES, BE LIABLE FOR SPECIAL, INCIDENTAL, OR

// CONSEQUENTIAL DAMAGES, FOR ANY REASON WHATSOEVER.

//

// This is part of revision 523 of the Stellaris Driver Library.

//

//*****************************************************************************

#ifndef __HW_COMP_H__

#define __HW_COMP_H__

//*****************************************************************************

//

// The following define the offsets of the comparator registers.

//

//*****************************************************************************

#define COMP_O_MIS              0x00000000  // Interrupt status register

#define COMP_O_RIS              0x00000004  // Raw interrupt status register

#define COMP_O_INTEN            0x00000008  // Interrupt enable register

#define COMP_O_REFCTL           0x00000010  // Reference voltage control reg.

#define COMP_O_ACSTAT0          0x00000020  // Comp0 status register

#define COMP_O_ACCTL0           0x00000024  // Comp0 control register

#define COMP_O_ACSTAT1          0x00000040  // Comp1 status register

#define COMP_O_ACCTL1           0x00000044  // Comp1 control register

//*****************************************************************************

//

// The following define the bit fields in the COMP_MIS, COMP_RIS, and

// COMP_INTEN registers.

//

//*****************************************************************************

#define COMP_INT_1              0x00000002  // Comp1 interrupt

#define COMP_INT_0              0x00000001  // Comp0 interrupt

//*****************************************************************************

//

// The following define the bit fields in the COMP_REFCTL register.

//

//*****************************************************************************

#define COMP_REFCTL_EN          0x00000200  // Reference voltage enable

#define COMP_REFCTL_RNG         0x00000100  // Reference voltage range

#define COMP_REFCTL_VREF_MASK   0x0000000F  // Reference voltage select mask

#define COMP_REFCTL_VREF_SHIFT  0

//*****************************************************************************

//

// The following define the bit fields in the COMP_ACSTAT0 and COMP_ACSTAT1

// registers.

//

//*****************************************************************************

#define COMP_ACSTAT_OVAL        0x00000002  // Comparator output value

//*****************************************************************************

//

// The following define the bit fields in the COMP_ACCTL0 and COMP_ACCTL1

// registers.

//

//*****************************************************************************

#define COMP_ACCTL_TMASK        0x00000800  // Trigger enable

#define COMP_ACCTL_ASRCP_MASK   0x00000600  // Vin+ source select mask

#define COMP_ACCTL_ASRCP_PIN    0x00000000  // Dedicated Comp+ pin

#define COMP_ACCTL_ASRCP_PIN0   0x00000200  // Comp0+ pin

#define COMP_ACCTL_ASRCP_REF    0x00000400  // Internal voltage reference

#define COMP_ACCTL_ASRCP_RES    0x00000600  // Reserved

#define COMP_ACCTL_OEN          0x00000100  // Comparator output enable

#define COMP_ACCTL_TSVAL        0x00000080  // Trigger polarity select

#define COMP_ACCTL_TSEN_MASK    0x00000060  // Trigger sense mask

#define COMP_ACCTL_TSEN_LEVEL   0x00000000  // Trigger is level sense

#define COMP_ACCTL_TSEN_FALL    0x00000020  // Trigger is falling edge

#define COMP_ACCTL_TSEN_RISE    0x00000040  // Trigger is rising edge

#define COMP_ACCTL_TSEN_BOTH    0x00000060  // Trigger is both edges

#define COMP_ACCTL_ISLVAL       0x00000010  // Interrupt polarity select

#define COMP_ACCTL_ISEN_MASK    0x0000000C  // Interrupt sense mask

#define COMP_ACCTL_ISEN_LEVEL   0x00000000  // Interrupt is level sense

#define COMP_ACCTL_ISEN_FALL    0x00000004  // Interrupt is falling edge

#define COMP_ACCTL_ISEN_RISE    0x00000008  // Interrupt is rising edge

#define COMP_ACCTL_ISEN_BOTH    0x0000000C  // Interrupt is both edges

#define COMP_ACCTL_CINV         0x00000002  // Comparator output invert

//*****************************************************************************

//

// The following define the reset values for the comparator registers.

//

//*****************************************************************************

#define COMP_RV_MIS             0x00000000  // Interrupt status register

#define COMP_RV_RIS             0x00000000  // Raw interrupt status register

#define COMP_RV_INTEN           0x00000000  // Interrupt enable register

#define COMP_RV_REFCTL          0x00000000  // Reference voltage control reg.

#define COMP_RV_ACSTAT0         0x00000000  // Comp0 status register

#define COMP_RV_ACCTL0          0x00000000  // Comp0 control register

#define COMP_RV_ACSTAT1         0x00000000  // Comp1 status register

#define COMP_RV_ACCTL1          0x00000000  // Comp1 control register

#endif // __HW_COMP_H__