libopencm3
A free/libre/open-source firmware library for various ARM Cortex-M3 microcontrollers.
burtc_common.h
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1/** @addtogroup burtc_defines
2 */
3/*
4 * This file is part of the libopencm3 project.
5 *
6 * Copyright (C) 2015 Kuldeep Singh Dhaka <kuldeepdhaka9@gmail.com>
7 *
8 * This library is free software: you can redistribute it and/or modify
9 * it under the terms of the GNU Lesser General Public License as published by
10 * the Free Software Foundation, either version 3 of the License, or
11 * (at your option) any later version.
12 *
13 * This library is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU Lesser General Public License for more details.
17 *
18 * You should have received a copy of the GNU Lesser General Public License
19 * along with this library. If not, see <http://www.gnu.org/licenses/>.
20 */
21
22#pragma once
23
24#include <libopencm3/efm32/memorymap.h>
25#include <libopencm3/cm3/common.h>
26
27/**@{*/
28
29#define BURTC_CTRL MMIO32(BURTC_BASE + 0x000)
30#define BURTC_LPMODE MMIO32(BURTC_BASE + 0x004)
31#define BURTC_CNT MMIO32(BURTC_BASE + 0x008)
32#define BURTC_COMP0 MMIO32(BURTC_BASE + 0x00C)
33#define BURTC_TIMESTAMP MMIO32(BURTC_BASE + 0x010)
34#define BURTC_LFXOFDET MMIO32(BURTC_BASE + 0x014)
35#define BURTC_STATUS MMIO32(BURTC_BASE + 0x018)
36#define BURTC_CMD MMIO32(BURTC_BASE + 0x01C)
37#define BURTC_POWERDOWN MMIO32(BURTC_BASE + 0x020)
38#define BURTC_LOCK MMIO32(BURTC_BASE + 0x024)
39#define BURTC_IF MMIO32(BURTC_BASE + 0x028)
40#define BURTC_IFS MMIO32(BURTC_BASE + 0x02C)
41#define BURTC_IFC MMIO32(BURTC_BASE + 0x030)
42#define BURTC_IEN MMIO32(BURTC_BASE + 0x034)
43#define BURTC_FREEZE MMIO32(BURTC_BASE + 0x038)
44#define BURTC_SYNCBUSY MMIO32(BURTC_BASE + 0x03C)
45
46#define RETx_REG(x) MMIO32(BURTC_BASE + 0x100 + (4 * (x)))
47/* [for ease] */
48#define BURTC_RETx(x) RETx_REG(x)
49
50/* BURTC_CTRL */
51#define BURTC_CTRL_BUMODETSEN (1 << 14)
52
53#define BURTC_CTRL_CLKSEL_SHIFT (8)
54#define BURTC_CTRL_CLKSEL_MASK (0x3 << BURTC_CTRL_CLKSEL_SHIFT)
55#define BURTC_CTRL_CLKSEL(v) \
56 (((v) << BURTC_CTRL_CLKSEL_SHIFT) & BURTC_CTRL_CLKSEL_MASK)
57#define BURTC_CTRL_CLKSEL_NONE 0
58#define BURTC_CTRL_CLKSEL_LFRCO 1
59#define BURTC_CTRL_CLKSEL_LFXO 2
60#define BURTC_CTRL_CLKSEL_ULFRCO 3
61
62#define BURTC_CTRL_PRESC_SHIFT (12)
63#define BURTC_CTRL_PRESC_MASK (0x7 << BURTC_CTRL_PRESC_SHIFT)
64#define BURTC_CTRL_PRESC(v) \
65 (((v) << BURTC_CTRL_PRESC_SHIFT) & BURTC_CTRL_PRESC_MASK)
66#define BURTC_CTRL_PRESC_DIV1 0
67#define BURTC_CTRL_PRESC_DIV2 1
68#define BURTC_CTRL_PRESC_DIV4 2
69#define BURTC_CTRL_PRESC_DIV8 3
70#define BURTC_CTRL_PRESC_DIV16 4
71#define BURTC_CTRL_PRESC_DIV32 5
72#define BURTC_CTRL_PRESC_DIV64 6
73#define BURTC_CTRL_PRESC_DIV128 7
74#define BURTC_CTRL_PRESC_NODIV BURTC_CTRL_PRESC_DIV1
75
76#define BURTC_CTRL_LPCOMPC_SHIFT (5)
77#define BURTC_CTRL_LPCOMPC_MASK (0x7 << BURTC_CTRL_LPCOMPC_SHIFT)
78#define BURTC_CTRL_LPCOMPC(v) \
79 (((v) << BURTC_CTRL_LPCOMPC_SHIFT) & BURTC_CTRL_LPCOMPC_MASK)
80#define BURTC_CTRL_LPCOMPC_IGNxLSB(x) BURTC_CTRL_LPCOMPC(x)
81#define BURTC_CTRL_LPCOMPC_IGN0LSB 0
82#define BURTC_CTRL_LPCOMPC_IGN1LSB 1
83#define BURTC_CTRL_LPCOMPC_IGN2LSB 2
84#define BURTC_CTRL_LPCOMPC_IGN3LSB 3
85#define BURTC_CTRL_LPCOMPC_IGN4LSB 4
86#define BURTC_CTRL_LPCOMPC_IGN5LSB 5
87#define BURTC_CTRL_LPCOMPC_IGN6LSB 6
88#define BURTC_CTRL_LPCOMPC_IGN7LSB 7
89
90#define BURTC_CTRL_COMP0TOP (1 << 4)
91#define BURTC_CTRL_RSTEN (1 << 3)
92#define BURTC_CTRL_DEBUGRUN (1 << 2)
93
94#define BURTC_CTRL_MODE_SHIFT (0)
95#define BURTC_CTRL_MODE_MASK (0x3 << BURTC_CTRL_MODE_SHIFT)
96#define BURTC_CTRL_MODE(v) \
97 (((v) << BURTC_CTRL_MODE_SHIFT) & BURTC_CTRL_MODE_MASK)
98#define BURTC_CTRL_MODE_DISABLE 0
99#define BURTC_CTRL_MODE_EM2EN 1
100#define BURTC_CTRL_MODE_EM3EN 2
101#define BURTC_CTRL_MODE_EM4EN 3
102
103/* BURTC_LPMODE */
104#define BURTC_LPMODE_LPMODE_SHIFT (0)
105#define BURTC_LPMODE_LPMODE_MASK (0x3 << BURTC_LPMODE_LPMODE_SHIFT)
106#define BURTC_LPMODE_LPMODE(v) \
107 (((v) << BURTC_LPMODE_LPMODE_SHIFT) & BURTC_LPMODE_LPMODE_MASK)
108#define BURTC_LPMODE_LPMODE_DISABLE 0
109#define BURTC_LPMODE_LPMODE_ENABLE 1
110#define BURTC_LPMODE_LPMODE_BUEN 2
111
112/* BURTC_LFXOFDET */
113#define BURTC_LFXOFDET_TOP_SHIFT (4)
114#define BURTC_LFXOFDET_TOP_MASK (0xF << BURTC_LFXOFDET_TOP_SHIFT)
115#define BURTC_LFXOFDET_TOP(v) \
116 (((v) << BURTC_LFXOFDET_TOP_SHIFT) & BURTC_LFXOFDET_TOP_MASK)
117
118#define BURTC_LFXOFDET_OSC_SHIFT (0)
119#define BURTC_LFXOFDET_OSC_MASK (0x3 << BURTC_LFXOFDET_OSC_SHIFT)
120#define BURTC_LFXOFDET_OSC(v) \
121 (((v) << BURTC_LFXOFDET_OSC_SHIFT) & BURTC_LFXOFDET_OSC_MASK)
122#define BURTC_LFXOFDET_OSC_DISABLE 0
123#define BURTC_LFXOFDET_OSC_LFRCO 1
124#define BURTC_LFXOFDET_OSC_ULFRCO 2
125
126/* BURTC_STATUS */
127#define BURTC_STATUS_RAMWERR (1 << 2)
128#define BURTC_STATUS_BUMODETS (1 << 1)
129#define BURTC_STATUS_LPMODEACT (1 << 0)
130
131/* BURTC_CMD */
132#define BURTC_CMD_CLRSTATUS (1 << 0)
133
134/* BURTC_POWERDOWN */
135#define BURTC_POWERDOWN_RAM (1 << 0)
136
137/* BURTC_LOCK */
138#define BURTC_LOCK_LOCKKEY_SHIFT (0)
139#define BURTC_LOCK_LOCKKEY_MASK (0xFFFF << BURTC_LOCK_LOCKKEY_SHIFT)
140#define BURTC_LOCK_LOCKKEY_UNLOCKED (0x0000 << BURTC_LOCK_LOCKKEY_SHIFT)
141#define BURTC_LOCK_LOCKKEY_LOCKED (0x0001 << BURTC_LOCK_LOCKKEY_SHIFT)
142#define BURTC_LOCK_LOCKKEY_LOCK (0x0000 << BURTC_LOCK_LOCKKEY_SHIFT)
143#define BURTC_LOCK_LOCKKEY_UNLOCK (0xAEE8 << BURTC_LOCK_LOCKKEY_SHIFT)
144
145/* BURTC_IF */
146#define BURTC_IF_LFXOFAIL (1 << 2)
147#define BURTC_IF_COMP0 (1 << 1)
148#define BURTC_IF_OF (1 << 0)
149
150/* BURTC_IFS */
151#define BURTC_IFS_LFXOFAIL (1 << 2)
152#define BURTC_IFS_COMP0 (1 << 1)
153#define BURTC_IFS_OF (1 << 0)
154
155/* BURTC_IFC */
156#define BURTC_IFC_LFXOFAIL (1 << 2)
157#define BURTC_IFC_COMP0 (1 << 1)
158#define BURTC_IFC_OF (1 << 0)
159
160/* BURTC_IEN */
161#define BURTC_IEN_LFXOFAIL (1 << 2)
162#define BURTC_IEN_COMP0 (1 << 1)
163#define BURTC_IEN_OF (1 << 0)
164
165/* BURTC_FREEZE */
166#define BURTC_FREEZE_REGFREEZE (1 << 0)
167
168/* BURTC_SYNCBUSY */
169#define BURTC_SYNCBUSY_COMP0 (1 << 1)
170#define BURTC_SYNCBUSY_LPMODE (1 << 0)
171
172/**@}*/
173
memorymap.h
Dispatcher for the base address definitions, depending on the particular Gecko family.