The time driver contains an interface to the system Real Time Clock (RTC). More...

Data Structures
class	Time
	System Time server. More...

Macros
#define	RTC_PORT(x) (0x70 + (x))
	The base I/O port of the CMOS.

#define	RTC_SECONDS 0
	Offset in the CMOS for the current number of seconds.

#define	RTC_MINUTES 2
	Offset in the CMOS for the current number of minutes.

#define	RTC_HOURS 4
	Offset in the CMOS for the current number of hours.

#define	RTC_DAY_OF_WEEK 6
	Offset in the CMOS for the current day of the week.

#define	RTC_DAY_OF_MONTH 7
	Offset in the CMOS for the current day of the month.

#define	RTC_MONTH 8
	Offset in the CMOS for the current month.

#define	RTC_YEAR 9
	Offset in the CMOS for the current year.

#define	CMOS_YEARS_OFFS 2000
	Assume that a two-digit year is after 2000.

#define	RTC_STATUS_A 10
	Offset in CMOS for the status A register.

#define	RTC_STATUS_B 11
	Offset in CMOS for the status B register.

#define	RTC_UIP 0x80
	Update in progress flag.

#define	RTC_DLS 0x01
	Daylight savings flag.

#define	RTC_24H 0x02
	24 hour mode flag.

#define	RTC_BCD 0x04
	Time/date in binary/BCD flag.

Detailed Description

The time driver contains an interface to the system Real Time Clock (RTC).

Macro Definition Documentation

◆ CMOS_YEARS_OFFS

#define CMOS_YEARS_OFFS 2000

Assume that a two-digit year is after 2000.

Definition at line 65 of file Time.h.

◆ RTC_24H

#define RTC_24H 0x02

24 hour mode flag.

Definition at line 80 of file Time.h.

◆ RTC_BCD

#define RTC_BCD 0x04

Time/date in binary/BCD flag.

Definition at line 83 of file Time.h.

◆ RTC_DAY_OF_MONTH

#define RTC_DAY_OF_MONTH 7

Offset in the CMOS for the current day of the month.

Definition at line 51 of file Time.h.

◆ RTC_DAY_OF_WEEK

#define RTC_DAY_OF_WEEK 6

Offset in the CMOS for the current day of the week.

Definition at line 48 of file Time.h.

◆ RTC_DLS

#define RTC_DLS 0x01

Daylight savings flag.

Definition at line 77 of file Time.h.

◆ RTC_HOURS

#define RTC_HOURS 4

Offset in the CMOS for the current number of hours.

Definition at line 45 of file Time.h.

◆ RTC_MINUTES

#define RTC_MINUTES 2

Offset in the CMOS for the current number of minutes.

Definition at line 42 of file Time.h.

◆ RTC_MONTH

#define RTC_MONTH 8

Offset in the CMOS for the current month.

Definition at line 54 of file Time.h.

◆ RTC_PORT

#define RTC_PORT ( x ) (0x70 + (x))

The base I/O port of the CMOS.

Definition at line 36 of file Time.h.

◆ RTC_SECONDS

#define RTC_SECONDS 0

Offset in the CMOS for the current number of seconds.

Definition at line 39 of file Time.h.

◆ RTC_STATUS_A

#define RTC_STATUS_A 10

Offset in CMOS for the status A register.

Definition at line 68 of file Time.h.

◆ RTC_STATUS_B

#define RTC_STATUS_B 11

Offset in CMOS for the status B register.

Definition at line 71 of file Time.h.

◆ RTC_UIP

#define RTC_UIP 0x80

Update in progress flag.

Definition at line 74 of file Time.h.

◆ RTC_YEAR

#define RTC_YEAR 9

Offset in the CMOS for the current year.

A one digit value means before 2000, and a two-digit value, i.e. >= 100, is after the year 2000.

Definition at line 62 of file Time.h.

Data Structures

Macros