Moteur de recherche de fiches techniques de composants électroniques |
|
NUC100-VB3E Fiches technique(PDF) 75 Page - Nuvoton Technology Corporation |
|
NUC100-VB3E Fiches technique(HTML) 75 Page - Nuvoton Technology Corporation |
75 / 107 page NUC100/120xxxDN Aug 31, 2015 Page 75 of 107 Rev 1.01 Real Time Clock (RTC) 6.13 6.13.1 Overview The Real Time Clock (RTC) controller provides user with the real time and calendar message. The clock source of RTC controller is from an external 32.768 kHz low speed crystal which connected at pins X32I and X32O (refer to pin Description) or from an external 32.768 kHz low speed oscillator output fed at pin X32I. The RTC controller provides the real time message (hour, minute, second) in TLR (RTC Time Loading Register) as well as calendar message (year, month, day) in CLR (RTC Calendar Loading Register). It also offers RTC alarm function that user can preset the alarm time in TAR (RTC Time Alarm Register) and alarm calendar in CAR (RTC Calendar Alarm Register). The data format of RTC time and calendar message are all expressed in BCD format. The RTC controller supports periodic RTC Time Tick and Alarm Match interrupts. The periodic RTC Time Tick interrupt has 8 period interval options 1/128, 1/64, 1/32, 1/16, 1/8, 1/4, 1/2 and 1 second which are selected by TTR (TTR[2:0] Time Tick Register). When real time and calendar message in TLR and CLR are equal to alarm time and calendar settings in TAR and CAR, the AIF (RIIR [0] RTC Alarm Interrupt Flag) is set to 1 and the RTC alarm interrupt signal is generated if the AIER (RIER [0] Alarm Interrupt Enable) is enabled. Both RTC Time Tick and Alarm Match interrupt signal can cause chip to wake-up from Idle or Power-down mode if the correlate interrupt enable bit (AIER or TIER) is set to 1 before chip enters Idle or Power-down mode. 6.13.2 Features Supports real time counter in TLR (hour, minute, second) and calendar counter in CLR (year, month, day) for RTC time and calendar check Supports alarm time (hour, minute, second) and calendar (year, month, day) settings in TAR and CAR Selectable 12-hour or 24-hour time scale in TSSR register Supports Leap Year indication in LIR register Supports Day of the Week counter in DWR register Frequency of RTC clock source compensate by FCR register All time and calendar message expressed in BCD format Supports periodic RTC Time Tick interrupt with 8 period interval options 1/128, 1/64, 1/32, 1/16, 1/8, 1/4, 1/2 and 1 second Supports RTC Time Tick and Alarm Match interrupt Supports chip wake-up from Idle or Power-down mode while a RTC interrupt signal is generated |
Numéro de pièce similaire - NUC100-VB3E |
|
Description similaire - NUC100-VB3E |
|
|
Lien URL |
Politique de confidentialité |
ALLDATASHEET.FR |
ALLDATASHEET vous a-t-il été utile ? [ DONATE ] |
À propos de Alldatasheet | Publicité | Contactez-nous | Politique de confidentialité | Echange de liens | Fabricants 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 |