 |
Electronic Components Datasheet Search |
|
|
Electronic Components Datasheet Search |
|
DS1305E Datasheet(PDF) 6 Page - Maxim Integrated Products |
|
||||||||||||||||||||||||||||||
DS1305E Datasheet(HTML) 6 Page - Maxim Integrated Products |
|
|
6 / 22 page  DS1305 READING FROM THE CLOCK REGISTERS Buffers are used to copy the time and date register at the beginning of a read. When reading in burst mode, the user copy is static while the internal registers continue to increment. Figure 2. RTC REGISTERS AND ADDRESS MAP HEX ADDRESS Bit7 Bit6 Bit5 Bit4 Bit3 Bit2 Bit1 Bit0 RANGE READ WRITE 00h 80h 0 10 Seconds Seconds 00–59 01h 81h 0 10 Minutes Minutes 00–59 02h 82h 0 12 P 10 Hour Hours 01–12 + P/A A 00–23 24 10 03h 83h 0 0 0 0 Day 1–7 04h 84h 0 0 10 Date Date 1–31 05h 85h 0 0 10 Month Month 01–12 06h 86h 10 Year Year 00–99 — — Alarm 0 — 07h 87h M 10 Seconds Alarm Seconds Alarm 00–59 08h 88h M 10 Minutes Alarm Minutes Alarm 00–59 09h 89h M 12 P 10 Hour Hour Alarm 01–12 + P/A A 24 10 00–23 0Ah 8Ah M 0 0 0 Day Alarm 01–07 — — Alarm 1 — 0Bh 8Bh M 10 Seconds Alarm Seconds Alarm 00–59 0Ch 8Ch M 10 Minutes Alarm Minutes Alarm 00–59 0Dh 8Dh M 12 P 10 Hour Hour Alarm 01–12 + P/A A 24 10 00–23 0Eh 8Eh M 0 0 0 Day Alarm 01–07 0Fh 8Fh Control Register — 10h 90h Status Register — 11h 91h Trickle Charger Register — 12h–1Fh 92h–9Fh Reserved — 20h–7Fh A0h–FFh 96 Bytes User RAM 00–FF Note: Range for alarm registers does not include mask’m’ bits. The DS1305 can be run in either 12-hour or 24-hour mode. Bit 6 of the hours register is defined as the 12- or 24-hour mode select bit. When high, the 12-hour mode is selected. In the 12-hour mode, bit 5 is the AM/PM bit with logic high being PM. In the 24-hour mode, bit 5 is the second 10-hour bit (20 to 23 hours). The DS1305 contains two time-of-day alarms. Time-of-day Alarm 0 can be set by writing to registers 87h to 8Ah. Time-of-day Alarm 1 can be set by writing to registers 8Bh to 8Eh. The alarms can be programmed (by the INTCN bit of the control register) to operate in two different modes; each alarm can drive its own separate interrupt output or both alarms can drive a common interrupt output. Bit 7 of each of the time-of-day alarm registers are mask bits (Table 2). When all of the mask bits are logic 0, a time- of-day alarm only occurs once per week when the values stored in timekeeping registers 00h to 03h match the values stored in the time-of-day alarm registers. An alarm is generated every day when bit 7 of the day alarm register is set to a logic 1. An alarm is generated every hour when bit 7 of the day and hour alarm registers is set to a logic 1. Similarly, an alarm is generated every minute when bit 7 of the day, 6 of 22 |
Similar Part No. - DS1305E |
|
Similar Description - DS1305E |
|
|
|
Link URL |
| Privacy Policy |
| ALLDATASHEET.COM |
| Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Datasheet Upload | Contact us | Privacy Policy | Link Exchange | Manufacturer List All Rights Reserved©Alldatasheet.com |
| Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
English ▼
English
Chinese
German
Japanese
Russian
Korean
Spanish
French
Italian
Portuguese
Polish
Vietnamese
Indian
Mexican
British
New Zealand
