![]() |
Electronic Components Datasheet Search |
|
PCF8563 Datasheet(PDF) 7 Page - NXP Semiconductors |
|
|
PCF8563 Datasheet(HTML) 7 Page - NXP Semiconductors |
7 / 32 page ![]() PCF8563_6 © NXP B.V. 2008. All rights reserved. Product data sheet Rev. 06 — 21 February 2008 7 of 32 NXP Semiconductors PCF8563 Real-time clock/calendar Bits TIE and AIE: These bits activate or deactivate the generation of an interrupt when TF or AF is asserted, respectively. The interrupt is the logical OR of these two conditions when both AIE and TIE are set. [1] TF and INT become active simultaneously. [2] n = loaded countdown value. Timer stopped when n = 0. 7.6.3 Time and date registers Table 5. Control_status_2 - Control and Status register 2 (address 01h) bit description Bit Symbol Value Description 7 to 5 0 default value is logic 0 4 TI_TP 0 INT is active when TF is active (subject to the status of TIE) 1 INT pulses active according to Table 6 (subject to the status of TIE); note that if AF and AIE are active then INT will be permanently active 3 AF 0 (read) alarm flag inactive 1 (read) alarm flag active 0 (write) alarm flag is cleared 1 (write) alarm flag remains unchanged 2 TF 0 (read) timer flag inactive 1 (read) timer flag active 0 (write) timer flag is cleared 1 (write) timer flag remains unchanged 1 AIE 0 alarm interrupt disabled 1 alarm interrupt enabled 0 TIE 0 timer interrupt disabled 1 timer interrupt enabled Table 6. INT operation (bit TI_TP = 1) Source clock (Hz) INT period (s)[1] n=1[2] n>1[2] 4096 1 ⁄8192 1 ⁄4096 64 1 ⁄128 1 ⁄64 1 1 ⁄64 1 ⁄64 1 ⁄60 1 ⁄64 1 ⁄64 Table 7. VL_seconds - Validity and Seconds register (address 02h) bit description Bit Symbol Value Description 7 VL 0 clock integrity is guaranteed 1 integrity of the clock information is no longer guaranteed 6 to 0 SECONDS[6:0] 00 to 59 the current seconds, coded in BCD format. Example: seconds register contains x101 1001 = 59 seconds |
Similar Part No. - PCF8563 |
|
Similar Description - PCF8563 |
|
|
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 |
Family Site : ic2ic.com |
icmetro.com |