diff options
Diffstat (limited to 'bsps/m68k/mcf5206elite/include/ds1307.h')
| -rw-r--r-- | bsps/m68k/mcf5206elite/include/ds1307.h | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/bsps/m68k/mcf5206elite/include/ds1307.h b/bsps/m68k/mcf5206elite/include/ds1307.h new file mode 100644 index 0000000000..8e5636a0c8 --- /dev/null +++ b/bsps/m68k/mcf5206elite/include/ds1307.h @@ -0,0 +1,41 @@ +/* + * This file contains the definitions for Dallas Semiconductor + * DS1307/DS1308 serial real-time clock/NVRAM. + * + * Copyright (C) 2000 OKTET Ltd., St.-Petersburg, Russia + * Author: Victor V. Vengerov <vvv@oktet.ru> + * + * The license and distribution terms for this file may be + * found in the file LICENSE in this distribution or at + * + * http://www.rtems.org/license/LICENSE. + */ + +#ifndef __RTC_DS1307__ +#define __RTC_DS1307__ + +#define DS1307_I2C_ADDRESS (0xD0) /* I2C bus address assigned to DS1307 */ + +#define DS1307_SECOND (0x00) +#define DS1307_SECOND_HALT (0x80) /* High bit is a Clock Halt bit */ +#define DS1307_MINUTE (0x01) +#define DS1307_HOUR (0x02) +#define DS1307_HOUR_12 (0x40) /* 12-hour mode */ +#define DS1307_HOUR_PM (0x20) /* PM in 12-hour mode */ +#define DS1307_DAY_OF_WEEK (0x03) +#define DS1307_DAY (0x04) +#define DS1307_MONTH (0x05) +#define DS1307_YEAR (0x06) +#define DS1307_CONTROL (0x07) +#define DS1307_CONTROL_OUT (0x80) /* Output control */ +#define DS1307_CONTROL_SQWE (0x10) /* Sqware Wave Enable */ +#define DS1307_CONTROL_RS_1 (0x00) /* Rate select: 1 Hz */ +#define DS1307_CONTROL_RS_4096 (0x01) /* Rate select: 4096 Hz */ +#define DS1307_CONTROL_RS_8192 (0x02) /* Rate select: 8192 Hz */ +#define DS1307_CONTROL_RS_32768 (0x03) /* Rate select; 32768 Hz */ + +#define DS1307_NVRAM_START (0x08) /* Start location of non-volatile memory */ +#define DS1307_NVRAM_END (0x3F) /* End location of non-volatile memory */ +#define DS1307_NVRAM_SIZE (56) /* Size of non-volatile memory */ + +#endif __RTC_DS1307__ |