 |
поискавой системы для электроныых деталей |
|
|
поискавой системы для электроныых деталей |
|
PCF8564AU/5GC/1 датащи(PDF) 18 Page - NXP Semiconductors |
|
|
|||||||||||||||||||||||||||||
PCF8564AU/5GC/1 датащи(HTML) 18 Page - NXP Semiconductors |
|
|
18 / 48 page  PCF8564A All information provided in this document is subject to legal disclaimers. © NXP B.V. 2013. All rights reserved. Product data sheet Rev. 3 — 26 August 2013 18 of 48 NXP Semiconductors PCF8564A Real time clock and calendar 6. Read time registers to see the first change. 7. Apply 64 clock pulses to CLKOUT. 8. Read time registers to see the second change. Repeat 7 and 8 for additional increments. 8.10 STOP bit function The function of the STOP bit is to allow for accurate starting of the time circuits. The STOP bit function will cause the upper part of the prescaler (F2 to F14) to be held in reset and thus no 1 Hz ticks will be generated (see Figure 8). The time circuits can then be set and will not increment until the STOP bit is released (see Figure 9 and Table 27). The STOP bit function will not affect the output of 32.768 kHz on CLKOUT, but will stop the generation of 1.024 kHz, 32 Hz and 1 Hz. The lower two stages of the prescaler (F0 and F1) are not reset and because the I2C-bus is asynchronous to the crystal oscillator, the accuracy of re-starting the time circuits will be between zero and one 8.192 kHz cycle (see Figure 9). Fig 8. STOP bit functional diagram Fig 9. STOP bit release timing |
|
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
