File content as of revision 2:37a61db8b04b:

#define PCF85263AT_ADDR   0xA2

#define Seconds_100th    0x00
#define Seconds          0x01
#define Minutes          0x02
#define Hours            0x03
#define Days             0x04
#define Weekdays         0x05
#define Months           0x06
#define Years            0x07
#define Second_alm1      0x08
#define Minute_alm1      0x09
#define Hour_alm1        0x0a
#define Day_alm1         0x0b
#define Month_alm1       0x0c
#define Minute_alm2      0x0d
#define Hour_alm2        0x0e
#define Weekday_alm2     0x0f
#define Alarm_enables    0x10
#define TSR1_seconds     0x11
#define TSR1_minutes     0x12
#define TSR1_hours       0x13
#define TSR1_days        0x14
#define TSR1_months      0x15
#define TSR1_years       0x16
#define TSR2_seconds     0x17
#define TSR2_minutes     0x18
#define TSR2_hours       0x19
#define TSR2_days        0x1a
#define TSR2_months      0x1b
#define TSR2_years       0x1c
#define TSR3_seconds     0x1d
#define TSR3_minutes     0x1e
#define TSR3_hours       0x1f
#define TSR3_days        0x20
#define TSR3_months      0x21
#define TSR3_years       0x22
#define TSR_mode         0x23

#define Offset           0x24
#define Oscillator       0x25
#define Battery_switch   0x26
#define Pin_IO           0x27
#define Function         0x28
#define INTA_enable      0x29
#define INTB_enable      0x2a
#define Flags            0x2b
#define RAM_byte         0x2c
#define Watchdog         0x2d
#define Stop_enable      0x2e
#define Resets           0x2f

typedef struct
{
  char   s100th;    // 0.01秒
  char   s;         // 秒
  char   m;         // 分
  char   h;         // 時間
  char   d;         // 日
  char   wd;        // 曜日
  char   mm;        // 月
  short   y;        // 年
} dt_dat, *pdt_dat;