hd146818.h
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上传用户:luoyougen
上传日期:2008-05-12
资源大小:23136k
文件大小:2k
源码类别:
VxWorks
开发平台:
C/C++
- /* hd146818.h - Hitachi 146818 RTC Real Time Clock header */
- /* Copyright 1991-1992 Wind River Systems, Inc. */
- /*
- modification history
- --------------------
- 01e,22sep92,rrr added support for c++
- 01d,26may92,rrr the tree shuffle
- 01c,04oct91,rrr passed through the ansification filter
- -fixed #else and #endif
- -changed ASMLANGUAGE to _ASMLANGUAGE
- -changed copyright notice
- 01b,07jun91,hdn defined HD146818_REG_OFFSET.
- 01a,26feb91,hdn written.
- */
- #ifndef __INChd146818h
- #define __INChd146818h
- #ifdef __cplusplus
- extern "C" {
- #endif
- #define HD146818_REG_OFFSET 3
- #ifndef _ASMLANGUAGE
- typedef struct
- {
- UCHAR pad0[HD146818_REG_OFFSET];
- UCHAR seconds;
- UCHAR pad1[HD146818_REG_OFFSET];
- UCHAR secAlarm;
- UCHAR pad2[HD146818_REG_OFFSET];
- UCHAR minutes;
- UCHAR pad3[HD146818_REG_OFFSET];
- UCHAR minAlarm;
- UCHAR pad4[HD146818_REG_OFFSET];
- UCHAR hours;
- UCHAR pad5[HD146818_REG_OFFSET];
- UCHAR hrAlarm;
- UCHAR pad6[HD146818_REG_OFFSET];
- UCHAR dayOfWeek;
- UCHAR pad7[HD146818_REG_OFFSET];
- UCHAR date;
- UCHAR pad8[HD146818_REG_OFFSET];
- UCHAR month;
- UCHAR pad9[HD146818_REG_OFFSET];
- UCHAR year;
- UCHAR pad10[HD146818_REG_OFFSET];
- UCHAR controlA;
- UCHAR pad11[HD146818_REG_OFFSET];
- UCHAR controlB;
- UCHAR pad12[HD146818_REG_OFFSET];
- UCHAR controlC;
- UCHAR pad13[HD146818_REG_OFFSET];
- UCHAR controlD;
- } RTC;
- #endif /* _ASMLANGUAGE */
- /* bit values for control register A */
- #define RTC_UIP 0x80
- #define RTC_1MHZ 0x10
- #define RTC_32KHZ 0x20
- #define RTC_DV_RESET 0x60
- /* bit values for control register B */
- #define RTC_SET 0x80
- #define RTC_PIE 0x40
- #define RTC_AIE 0x20
- #define RTC_UIE 0x10
- #define RTC_SQWE 0x08
- #define RTC_DM 0x04
- #define RTC_24 0x02
- #define RTC_DSE 0x01
- /* bit values for control register C */
- #define RTC_IRQF 0x80
- #define RTC_PF 0x40
- #define RTC_AF 0x20
- #define RTC_UF 0x10
- #ifdef __cplusplus
- }
- #endif
- #endif /* __INChd146818h */