1 //*****************************************************************************
3 // hw_comp.h - Macros used when accessing the comparator hardware.
5 // Copyright (c) 2005,2006 Luminary Micro, Inc. All rights reserved.
7 // Software License Agreement
9 // Luminary Micro, Inc. (LMI) is supplying this software for use solely and
10 // exclusively on LMI's Stellaris Family of microcontroller products.
12 // The software is owned by LMI and/or its suppliers, and is protected under
13 // applicable copyright laws. All rights are reserved. Any use in violation
14 // of the foregoing restrictions may subject the user to criminal sanctions
15 // under applicable laws, as well as to civil liability for the breach of the
16 // terms and conditions of this license.
18 // THIS SOFTWARE IS PROVIDED "AS IS". NO WARRANTIES, WHETHER EXPRESS, IMPLIED
19 // OR STATUTORY, INCLUDING, BUT NOT LIMITED TO, IMPLIED WARRANTIES OF
20 // MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE APPLY TO THIS SOFTWARE.
21 // LMI SHALL NOT, IN ANY CIRCUMSTANCES, BE LIABLE FOR SPECIAL, INCIDENTAL, OR
22 // CONSEQUENTIAL DAMAGES, FOR ANY REASON WHATSOEVER.
24 // This is part of revision 816 of the Stellaris Driver Library.
26 //*****************************************************************************
31 //*****************************************************************************
33 // The following define the offsets of the comparator registers.
35 //*****************************************************************************
36 #define COMP_O_MIS 0x00000000 // Interrupt status register
37 #define COMP_O_RIS 0x00000004 // Raw interrupt status register
38 #define COMP_O_INTEN 0x00000008 // Interrupt enable register
39 #define COMP_O_REFCTL 0x00000010 // Reference voltage control reg.
40 #define COMP_O_ACSTAT0 0x00000020 // Comp0 status register
41 #define COMP_O_ACCTL0 0x00000024 // Comp0 control register
42 #define COMP_O_ACSTAT1 0x00000040 // Comp1 status register
43 #define COMP_O_ACCTL1 0x00000044 // Comp1 control register
44 #define COMP_O_ACSTAT2 0x00000060 // Comp2 status register
45 #define COMP_O_ACCTL2 0x00000064 // Comp2 control register
47 //*****************************************************************************
49 // The following define the bit fields in the COMP_MIS, COMP_RIS, and
50 // COMP_INTEN registers.
52 //*****************************************************************************
53 #define COMP_INT_2 0x00000004 // Comp2 interrupt
54 #define COMP_INT_1 0x00000002 // Comp1 interrupt
55 #define COMP_INT_0 0x00000001 // Comp0 interrupt
57 //*****************************************************************************
59 // The following define the bit fields in the COMP_REFCTL register.
61 //*****************************************************************************
62 #define COMP_REFCTL_EN 0x00000200 // Reference voltage enable
63 #define COMP_REFCTL_RNG 0x00000100 // Reference voltage range
64 #define COMP_REFCTL_VREF_MASK 0x0000000F // Reference voltage select mask
65 #define COMP_REFCTL_VREF_SHIFT 0
67 //*****************************************************************************
69 // The following define the bit fields in the COMP_ACSTAT0, COMP_ACSTAT1, and
70 // COMP_ACSTAT2 registers.
72 //*****************************************************************************
73 #define COMP_ACSTAT_OVAL 0x00000002 // Comparator output value
75 //*****************************************************************************
77 // The following define the bit fields in the COMP_ACCTL0, COMP_ACCTL1, and
78 // COMP_ACCTL2 registers.
80 //*****************************************************************************
81 #define COMP_ACCTL_TMASK 0x00000800 // Trigger enable
82 #define COMP_ACCTL_ASRCP_MASK 0x00000600 // Vin+ source select mask
83 #define COMP_ACCTL_ASRCP_PIN 0x00000000 // Dedicated Comp+ pin
84 #define COMP_ACCTL_ASRCP_PIN0 0x00000200 // Comp0+ pin
85 #define COMP_ACCTL_ASRCP_REF 0x00000400 // Internal voltage reference
86 #define COMP_ACCTL_ASRCP_RES 0x00000600 // Reserved
87 #define COMP_ACCTL_OEN 0x00000100 // Comparator output enable
88 #define COMP_ACCTL_TSVAL 0x00000080 // Trigger polarity select
89 #define COMP_ACCTL_TSEN_MASK 0x00000060 // Trigger sense mask
90 #define COMP_ACCTL_TSEN_LEVEL 0x00000000 // Trigger is level sense
91 #define COMP_ACCTL_TSEN_FALL 0x00000020 // Trigger is falling edge
92 #define COMP_ACCTL_TSEN_RISE 0x00000040 // Trigger is rising edge
93 #define COMP_ACCTL_TSEN_BOTH 0x00000060 // Trigger is both edges
94 #define COMP_ACCTL_ISLVAL 0x00000010 // Interrupt polarity select
95 #define COMP_ACCTL_ISEN_MASK 0x0000000C // Interrupt sense mask
96 #define COMP_ACCTL_ISEN_LEVEL 0x00000000 // Interrupt is level sense
97 #define COMP_ACCTL_ISEN_FALL 0x00000004 // Interrupt is falling edge
98 #define COMP_ACCTL_ISEN_RISE 0x00000008 // Interrupt is rising edge
99 #define COMP_ACCTL_ISEN_BOTH 0x0000000C // Interrupt is both edges
100 #define COMP_ACCTL_CINV 0x00000002 // Comparator output invert
102 //*****************************************************************************
104 // The following define the reset values for the comparator registers.
106 //*****************************************************************************
107 #define COMP_RV_MIS 0x00000000 // Interrupt status register
108 #define COMP_RV_RIS 0x00000000 // Raw interrupt status register
109 #define COMP_RV_INTEN 0x00000000 // Interrupt enable register
110 #define COMP_RV_REFCTL 0x00000000 // Reference voltage control reg.
111 #define COMP_RV_ACSTAT0 0x00000000 // Comp0 status register
112 #define COMP_RV_ACCTL0 0x00000000 // Comp0 control register
113 #define COMP_RV_ACSTAT1 0x00000000 // Comp1 status register
114 #define COMP_RV_ACCTL1 0x00000000 // Comp1 control register
115 #define COMP_RV_ACSTAT2 0x00000000 // Comp2 status register
116 #define COMP_RV_ACCTL2 0x00000000 // Comp2 control register
118 #endif // __HW_COMP_H__