diff options
| author | Joel Sing <jsing@cvs.openbsd.org> | 2008-03-31 07:14:01 +0000 |
|---|---|---|
| committer | Joel Sing <jsing@cvs.openbsd.org> | 2008-03-31 07:14:01 +0000 |
| commit | 628a8fb41e69af7d1e9951bf41c0a5fc73e1531d (patch) | |
| tree | 578e22273eaedf55a2cfa8d26f040041f8221457 /sys/dev/ic/ds1687reg.h | |
| parent | acee34ca915e0eb0b7b93c827ae08d7b97666d45 (diff) | |
Add define for 24 hour time.
Diffstat (limited to 'sys/dev/ic/ds1687reg.h')
| -rw-r--r-- | sys/dev/ic/ds1687reg.h | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/sys/dev/ic/ds1687reg.h b/sys/dev/ic/ds1687reg.h index bf02aedf611..ae1debb9d59 100644 --- a/sys/dev/ic/ds1687reg.h +++ b/sys/dev/ic/ds1687reg.h @@ -1,4 +1,4 @@ -/* $OpenBSD: ds1687reg.h,v 1.1 2007/12/27 02:59:13 jsing Exp $ */ +/* $OpenBSD: ds1687reg.h,v 1.2 2008/03/31 07:14:00 jsing Exp $ */ /* * Copyright (c) 2007, Joel Sing <jsing@openbsd.org> @@ -29,10 +29,11 @@ * * The DS1687 contains a DS1685, which is an improved version of the older * DS1287 RTC. New/extended registers are available by selecting bank 1. + * Register values are either in BCD (data mode 0) or binary (data mode 1). */ /* - * DS1687 Registers (Data Mode 0 - BCD). + * DS1687 Registers. */ #define DS1687_SEC 0x00 /* Seconds. */ #define DS1687_SEC_ALRM 0x01 /* Alarm seconds. */ @@ -49,6 +50,7 @@ #define DS1687_BANK_1 0x10 /* Bank select. */ #define DS1687_UIP 0x80 /* Update in progress. */ #define DS1687_CTRL_B 0x0b /* Control register B. */ +#define DS1687_24_HR 0x02 /* Use 24 hour time. */ #define DS1687_DM_1 0x04 /* Data mode 1 (binary). */ #define DS1687_SET_CLOCK 0x80 /* Prohibit updates. */ #define DS1687_CTRL_C 0x0c /* Control register C. */ |