ds1307reg.h revision 1.4.2.1
1 /* $NetBSD: ds1307reg.h,v 1.4.2.1 2017/12/03 11:37:02 jdolecek Exp $ */ 2 3 /* 4 * Copyright (c) 2003 Wasabi Systems, Inc. 5 * All rights reserved. 6 * 7 * Written by Steve C. Woodford for Wasabi Systems, Inc. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in the 16 * documentation and/or other materials provided with the distribution. 17 * 3. All advertising materials mentioning features or use of this software 18 * must display the following acknowledgement: 19 * This product includes software developed for the NetBSD Project by 20 * Wasabi Systems, Inc. 21 * 4. The name of Wasabi Systems, Inc. may not be used to endorse 22 * or promote products derived from this software without specific prior 23 * written permission. 24 * 25 * THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND 26 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 27 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 28 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL WASABI SYSTEMS, INC 29 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 30 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 31 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 32 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 33 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 34 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 35 * POSSIBILITY OF SUCH DAMAGE. 36 */ 37 38 #ifndef _DEV_I2C_DS1307REG_H_ 39 #define _DEV_I2C_DS1307REG_H_ 40 41 /* 42 * DS1307 64x8 Serial Real-Time Clock 43 */ 44 45 #define DS1307_ADDR 0x68 /* Fixed I2C Slave Address */ 46 #define MCP7940_ADDR 0x6f 47 48 #define DSXXXX_SECONDS 0x00 49 #define DSXXXX_MINUTES 0x01 50 #define DSXXXX_HOURS 0x02 51 #define DSXXXX_DAY 0x03 52 #define DSXXXX_DATE 0x04 53 #define DSXXXX_MONTH 0x05 54 #define DSXXXX_YEAR 0x06 55 #define DSXXXX_RTC_SIZE 7 56 57 #define DS1307_CONTROL 0x07 58 #define DS1307_RTC_START 0 59 #define DS1307_RTC_SIZE DSXXXX_RTC_SIZE 60 #define DS1307_NVRAM_START 0x08 61 #define DS1307_NVRAM_SIZE 0x38 62 63 #define DS1339_CONTROL 0x0e 64 #define DS1339_RTC_START 0 65 #define DS1339_RTC_SIZE DSXXXX_RTC_SIZE 66 #define DS1339_NVRAM_START 0 67 #define DS1339_NVRAM_SIZE 0 68 69 #define DS1340_RTC_START 0 70 #define DS1340_RTC_SIZE DSXXXX_RTC_SIZE 71 #define DS1340_SECONDS_EOSC (1 << 7) /* Clock Hold */ 72 73 #define DS1672_CNTR1 0x00 74 #define DS1672_CNTR2 0x01 75 #define DS1672_CNTR3 0x02 76 #define DS1672_CNTR4 0x03 77 #define DS1672_CONTROL 0x04 78 #define DS1672_CONTROL_CH (1 << 7) /* clock hold */ 79 #define DS1672_TRICKLE 0x05 80 81 #define DS1672_RTC_START 0 82 #define DS1672_RTC_SIZE 4 83 #define DS1672_NVRAM_START 0 84 #define DS1672_NVRAM_SIZE 0 85 86 #define DS3232_CONTROL 0x0e 87 #define DS3232_CSR 0x0f 88 #define DS3232_RTC_START 0 89 #define DS3232_RTC_SIZE DSXXXX_RTC_SIZE 90 #define DS3232_TEMP_MSB 0x11 91 #define DS3232_TEMP_LSB 0x12 92 #define DS3232_NVRAM_START 0x14 93 #define DS3232_NVRAM_SIZE 0xec 94 95 #define MCP7940_NVRAM_START 0x20 96 #define MCP7940_NVRAM_SIZE 0x40 97 98 /* 99 * Bit definitions. 100 */ 101 #define DSXXXX_SECONDS_MASK 0x7f 102 #define DSXXXX_MINUTES_MASK 0x7f 103 #define DSXXXX_HOURS_12HRS_MODE (1u << 6) /* Set for 12 hour mode */ 104 #define DSXXXX_HOURS_12HRS_PM (1u << 5) /* If 12 hr mode, set = PM */ 105 #define DSXXXX_HOURS_12MASK 0x1f 106 #define DSXXXX_HOURS_24MASK 0x3f 107 #define DSXXXX_DAY_MASK 0x07 108 #define DSXXXX_DATE_MASK 0x3f 109 #define DSXXXX_MONTH_MASK 0x1f 110 #define DSXXXX_MONTH_CENTURY 0x80 111 112 #define DS1307_SECONDS_CH (1u << 7) /* Clock Hold */ 113 #define DS1307_CONTROL_OUT (1u << 7) /* OSC/OUT pin value */ 114 #define DS1307_CONTROL_SQWE (1u << 4) /* Enable square wave output */ 115 #define DS1307_CONTROL_1HZ 0 116 #define DS1307_CONTROL_4096HZ 1 117 #define DS1307_CONTROL_8192HZ 2 118 #define DS1307_CONTROL_32768HZ 3 119 120 #define DSXXXX_CONTROL_DOSC (1u << 7) /* Disable Oscillator */ 121 122 #define MCP7940_TOD_DAY_VBATEN (1u << 3) /* Enable battery backup */ 123 124 #endif /* _DEV_I2C_DS1307REG_H_ */ 125
Indexes created Tue Oct 14 21:09:58 GMT 2025