30 lines
741 B
C
30 lines
741 B
C
#ifndef __DS1501_H__
|
|
#define __DS1501_H__
|
|
|
|
/* Dallas Semiconductor DS1501/DS1511 Watchdog RTC */
|
|
|
|
#define DS_SECONDS 0x1ff9
|
|
#define DS_MINUTES 0x1ffa
|
|
#define DS_HOURS 0x1ffb
|
|
#define DS_DAY 0x1ffc
|
|
#define DS_DATE 0x1ffd
|
|
#define DS_MONTH 0x1ffe
|
|
#define DS_YEAR 0x1fff
|
|
#define DS_CENTURY 0x1ff8
|
|
|
|
|
|
#define DS_CTL_R 0x40 /* R bit in the century register */
|
|
#define DS_CTL_W 0x80 /* W bit in the century register */
|
|
#define DS_CTL_RW (DS_CTL_R|DS_CTL_W)
|
|
|
|
#define DS_CTL_OSC 0x80 /* ~OSC BIT in the seconds register */
|
|
|
|
#define DS_CTL_BF 0x80 /* BF(battery failure) bit in the day register */
|
|
#define DS_CTL_FT 0x40 /* FT(frequency test) bit in the day register */
|
|
|
|
#define DS_RAM_SIZE 0x1ff8
|
|
|
|
#define DS_SIZE 0x2000
|
|
|
|
#endif /* __DS1501_H__ */
|