RTEMS: bsps/m68k/mcf5206elite/include/ds1307.h Source File

| RTEMS 5.4-rc2

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ds1307.h
1/*
2 * This file contains the definitions for Dallas Semiconductor
3 * DS1307/DS1308 serial real-time clock/NVRAM.
4 *
5 * Copyright (C) 2000 OKTET Ltd., St.-Petersburg, Russia
6 * Author: Victor V. Vengerov <vvv@oktet.ru>
7 *
8 * The license and distribution terms for this file may be
9 * found in the file LICENSE in this distribution or at
10 *
11 * http://www.rtems.org/license/LICENSE.
12 */
13
14#ifndef __RTC_DS1307__
15#define __RTC_DS1307__
16
17#define DS1307_I2C_ADDRESS (0xD0) /* I2C bus address assigned to DS1307 */
18
19#define DS1307_SECOND (0x00)
20#define DS1307_SECOND_HALT (0x80) /* High bit is a Clock Halt bit */
21#define DS1307_MINUTE (0x01)
22#define DS1307_HOUR (0x02)
23#define DS1307_HOUR_12 (0x40) /* 12-hour mode */
24#define DS1307_HOUR_PM (0x20) /* PM in 12-hour mode */
25#define DS1307_DAY_OF_WEEK (0x03)
26#define DS1307_DAY (0x04)
27#define DS1307_MONTH (0x05)
28#define DS1307_YEAR (0x06)
29#define DS1307_CONTROL (0x07)
30#define DS1307_CONTROL_OUT (0x80) /* Output control */
31#define DS1307_CONTROL_SQWE (0x10) /* Sqware Wave Enable */
32#define DS1307_CONTROL_RS_1 (0x00) /* Rate select: 1 Hz */
33#define DS1307_CONTROL_RS_4096 (0x01) /* Rate select: 4096 Hz */
34#define DS1307_CONTROL_RS_8192 (0x02) /* Rate select: 8192 Hz */
35#define DS1307_CONTROL_RS_32768 (0x03) /* Rate select; 32768 Hz */
36
37#define DS1307_NVRAM_START (0x08) /* Start location of non-volatile memory */
38#define DS1307_NVRAM_END (0x3F) /* End location of non-volatile memory */
39#define DS1307_NVRAM_SIZE (56) /* Size of non-volatile memory */
40
41#endif /* __RTC_DS1307__ */