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/*++
Copyright (c) 1991 Microsoft Corporation
Copyright (c) 1994 Digital Equipment Corporation
Module Name:
d1287rtc.h
Abstract:
This module is the header file that describes hardware structure
for the Dallas 1287 Toy clock.
Author:
David N. Cutler (davec) 3-May-1991
Jeff McLeman (mcleman) 4-Jun-1992
Revision History:
94.01.16 Steve Jenness
Split out the Dallas RTC definitions from the platform specific
RTC definitions.
--*/
#ifndef _D1287RTC_
#define _D1287RTC_
//
// Define Realtime Clock register numbers.
//
#define RTC_SECOND 0 // second of minute [0..59]
#define RTC_SECOND_ALARM 1 // seconds to alarm
#define RTC_MINUTE 2 // minute of hour [0..59]
#define RTC_MINUTE_ALARM 3 // minutes to alarm
#define RTC_HOUR 4 // hour of day [0..23]
#define RTC_HOUR_ALARM 5 // hours to alarm
#define RTC_DAY_OF_WEEK 6 // day of week [1..7]
#define RTC_DAY_OF_MONTH 7 // day of month [1..31]
#define RTC_MONTH 8 // month of year [1..12]
#define RTC_YEAR 9 // year [00..99]
#define RTC_CONTROL_REGISTERA 10 // control register A
#define RTC_CONTROL_REGISTERB 11 // control register B
#define RTC_CONTROL_REGISTERC 12 // control register C
#define RTC_CONTROL_REGISTERD 13 // control register D
#ifndef _LANGUAGE_ASSEMBLY
//
// Define Control Register A structure.
//
typedef struct _RTC_CONTROL_REGISTER_A {
UCHAR RateSelect : 4;
UCHAR TimebaseDivisor : 3;
UCHAR UpdateInProgress : 1;
} RTC_CONTROL_REGISTER_A, *PRTC_CONTROL_REGISTER_A;
//
// Define Control Register B structure.
//
typedef struct _RTC_CONTROL_REGISTER_B {
UCHAR DayLightSavingsEnable : 1;
UCHAR HoursFormat : 1;
UCHAR DataMode : 1;
UCHAR SquareWaveEnable : 1;
UCHAR UpdateInterruptEnable : 1;
UCHAR AlarmInterruptEnable : 1;
UCHAR TimerInterruptEnable : 1;
UCHAR SetTime : 1;
} RTC_CONTROL_REGISTER_B, *PRTC_CONTROL_REGISTER_B;
//
// Define Control Register C structure.
//
typedef struct _RTC_CONTROL_REGISTER_C {
UCHAR Fill : 4;
UCHAR UpdateInterruptFlag : 1;
UCHAR AlarmInterruptFlag : 1;
UCHAR TimeInterruptFlag : 1;
UCHAR InterruptRequest : 1;
} RTC_CONTROL_REGISTER_C, *PRTC_CONTROL_REGISTER_C;
//
// Define Control Register D structure.
//
typedef struct _RTC_CONTROL_REGISTER_D {
UCHAR Fill : 7;
UCHAR ValidTime : 1;
} RTC_CONTROL_REGISTER_D, *PRTC_CONTROL_REGISTER_D;
#endif // _LANGUAGE_ASSEMBLY
#endif // _SABLERTC_
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