 |
поискавой системы для электроныых деталей |
|
|
поискавой системы для электроныых деталей |
|
PCF2129AT датащи(PDF) 39 Page - NXP Semiconductors |
|
|
|||||||||||||||||||||||||||||
PCF2129AT датащи(HTML) 39 Page - NXP Semiconductors |
|
|
39 / 86 page  PCF2129 All information provided in this document is subject to legal disclaimers. © NXP Semiconductors N.V. 2014. All rights reserved. Product data sheet Rev. 7 — 19 December 2014 39 of 86 NXP Semiconductors PCF2129 Accurate RTC with integrated quartz crystal for industrial applications The following tables show what instruction must be sent to clear the appropriate flag. [1] The bits labeled as - have to be rewritten with the previous values. [1] The bits labeled as - have to be rewritten with the previous values. 8.11 Timestamp function The PCF2129 has an active LOW timestamp input pin TS, internally pulled with an on-chip pull-up resistor to Voper(int). It also has a timestamp detection circuit which can detect two different events: 1. Input on pin TS is driven to an intermediate level between power supply and ground. 2. Input on pin TS is driven to ground. The timestamp function is enabled by default after power-on and it can be switched off by setting the control bit TSOFF (register Timestp_ctl). Table 54. Example values in register Control_2 Register Bit 7 6 5 4 3 2 1 0 Control_2 101 10000 Table 55. Example to clear only AF (bit 4) Register Bit 7 6 5 4 3 2 1 0 Control_2 1 0 1 0 0 0[1] 0[1] 0 Table 56. Example to clear only MSF (bit 7) Register Bit 7 6 5 4 3 2 1 0 Control_2 0 0 1 1 0 0[1] 0[1] 0 (1) When using switches or push-buttons, it is recommended to connect a 1 nF capacitance to the TS pin to ensure proper switching. Fig 20. Timestamp detection with two push-buttons on the TS pin (for example, for tamper detection) |
|
ссылки URL |
| Вашему бизинису помогли Аллдатащит? [ DONATE ] |
Что такое Аллдатащит | реклама | контакт | Конфиденциальность | Ссылка на техническое описание | обмен ссыками | поиск по производителю 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 |
Russian ▼
English
Chinese
German
Japanese
Russian
Korean
Spanish
French
Italian
Portuguese
Polish
Vietnamese
Indian
Mexican
British
New Zealand
