ds1307_internal.h

Register definitions for DS1307 RTC.

DS1307_REG_SEC

seconds

(0x00)

DS1307_REG_MIN

minutes

(0x01)

DS1307_REG_HOUR

hours

(0x02)

DS1307_REG_DOW

day of week (1-7, 1 == sunday)

(0x03)

DS1307_REG_DOM

day of month

(0x04)

DS1307_REG_MON

month

(0x05)

DS1307_REG_YEAR

year

(0x06)

DS1307_REG_SQW_CTL

SQW control.

(0x07)

DS1307_REG_RAM_FIRST

NVRAM start.

(0x08)

DS1307_REG_RAM_LAST

NVRAM end.

(0x3F)

DS1307_REG_SEC_CH

clock halt bit

(0x80)

DS1307_REG_SEC_MASK

seconds mask

(0x7f)

DS1307_REG_MIN_MASK

minutes mask

(0x7f)

DS1307_REG_HOUR_12H

12-hour (0) / 24-hour (1) mode

(0x40)

DS1307_REG_HOUR_PM

AM (0) / PM (1) in 12-hour mode.

(0x20)

DS1307_REG_HOUR_12H_MASK

hour (12-hour mode)

(0x2f)

DS1307_REG_HOUR_24H_MASK

hour (24-hour mode)

(0x3f)

DS1307_REG_DOW_MASK

day of week mask

(0x07)

DS1307_REG_DOM_MASK

day of month mask

(0x3f)

DS1307_REG_MON_MASK

month mask

(0x1f)

DS1307_DOW_OFFSET

offset in days from sunday

(1)

DS1307_MON_OFFSET

offset in month from January

(1)

DS1307_YEAR_OFFSET

offset in years from 1900

(-100)