 |
Electronic Components Datasheet Search |
|
|
Electronic Components Datasheet Search |
|
PCF2123 Datasheet(PDF) 17 Page - NXP Semiconductors |
|
|
|||||||||||||||||||||||||||||
PCF2123 Datasheet(HTML) 17 Page - NXP Semiconductors |
|
|
17 / 63 page  PCF2123 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2011. All rights reserved. Product data sheet Rev. 5 — 27 April 2011 17 of 63 NXP Semiconductors PCF2123 SPI Real time clock/calendar 8.5 Alarm function When one or more of these registers are loaded with a valid minute, hour, day, or weekday and its corresponding alarm enable bit (AE_x) is logic 0, then that information will be compared with the current minute, hour, day, and weekday. 8.5.1 Register Minute_alarm [1] Default value. 8.5.2 Register Hour_alarm [1] Default value. [2] Hour mode is set by the 12_24 bit in register Control_1. 8.5.3 Register Day_alarm [1] Default value. Table 18. Minute_alarm - minute alarm register (address 09h) bit description Bit Symbol Value Place value Description 7 AE_M 0 - minute alarm is enabled 1[1] - minute alarm is disabled 6 to 4 MINUTE_ALARM 0 to 5 ten’s place minute alarm information coded in BCD format 3 to 0 0 to 9 unit place Table 19. Hour_alarm - hour alarm register (address 0Ah) bit description Bit Symbol Value Place value Description 7 AE_H 0 - hour alarm is enabled 1[1] - hour alarm is disabled 6 - - - unused 12 hour mode[2] 5 AMPM 0 - indicates AM 1 - indicates PM 4 HOUR_ALARM 0 to 1 ten’s place hour alarm information coded in BCD format when in 12 hour mode 3to0 0to 9 unit place 24 hour mode[2] 5 to 4 HOUR_ALARM 0 to 2 ten’s place hour alarm information coded in BCD format when in 24 hour mode 3to0 0to 9 unit place Table 20. Day_alarm - day alarm register (address 0Bh) bit description Bit Symbol Value Place value Description 7 AE_D 0 - day alarm is enabled 1[1] - day alarm is disabled 6 - - - unused 5 to 4 DAY_ALARM 0 to 3 ten’s place day alarm information coded in BCD format 3 to 0 0 to 9 unit place |
|
Link URL |
| Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Contact us | Privacy Policy | Link to Datasheet | 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 |
|
Family Site : ic2ic.com |
icmetro.com |
English ▼
English
Chinese
German
Japanese
Russian
Korean
Spanish
French
Italian
Portuguese
Polish
Vietnamese
Indian
Mexican
British
New Zealand
