 |
поискавой системы для электроныых деталей |
|
|
поискавой системы для электроныых деталей |
|
33889 датащи(PDF) 33 Page - Freescale Semiconductor, Inc |
|
|
|||||||||||||||||||||||||||||
33889 датащи(HTML) 33 Page - Freescale Semiconductor, Inc |
|
|
33 / 60 page  Analog Integrated Circuit Device Data Freescale Semiconductor 33 33889 FUNCTIONAL DEVICE OPERATION OPERATIONAL MODES Figure 13. CAN Normal Signal Communication and CAN Open Wire Figure 14. Open Wire Detection Principle Open wire detection, MC33889B and D: Failure detection: The device will detect a difference in toggling counts between the differential receiver and one of the single ended receivers. Every time a difference in count is detected a counter is incremented. When the counter reaches 4, the device detects and reports an open wire condition. The open wire detection is performed only when the device receives a message and not when it send message. Open wire recovery: When the open wire failure has recovered, the difference in count is reduced and the device detects the open wire recovery. MC33889B: When detection is complete, the counter is no longer incremented. It can only be decremented by sampling of the dominant level on the S-H (S-L) (recovery pulse). When it reaches zero, the failure has recovered. CANH CANL Diff S-L S-H -3.2V Rec Dom Rec Sampling point CANH CANL Diff S-L S-H -3.2V Rec Dom Rec Sampling point Sampling recessive level = > open wire “detection pulse” 1us (No open wire, or open wire recovery) (CAN H open wire) Sampling dominant level = > no failure or “recovery pulse” Diff CANH CANL S-H 1us Sampling Dom Rec S-L 1us Sampling CANH counter L-open L-counter +/- (count = 4) recover (count = 0) |
|
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
