 |
поискавой системы для электроныых деталей |
|
|
поискавой системы для электроныых деталей |
|
ST92F124 датащи(PDF) 295 Page - STMicroelectronics |
|
|
|||||||||||||||||||||||||||||
ST92F124 датащи(HTML) 295 Page - STMicroelectronics |
|
|
295 / 426 page  295/426 J1850 Byte Level Protocol Decoder (JBLPD) J1850 BYTE LEVEL PROTOCOL DECODER (Cont’d) Figure 138. Local Loopback structure 10.9.3.8 Peripheral clock management To work correctly, the encoder and decoder sec- tions of the peripheral need an internal clock at 1MHz. This clock is used to evaluate the protocol symbols timings in transmission and in reception. The prescaled clock is obtained by dividing the MCU internal clock frequency. The CLKSEL regis- ter allows the selection of the right prescaling fac- tor. The six least significant bits of the register (FREQ[5:0]) must be programmed with a value us- ing the following formula: MCU Internal Freq. = 1MHz * (FREQ[5:0] + 1). Note: If the MCU internal clock frequency is lower than 1MHz, the JBLPD is not able to work correct- ly. If a frequency lower than 1MHz is used, the user program must disable the JBLPD. Note: When the MCU internal clock frequency or the clock prescaler factor are changed, the JBLPD could lose synchronization with the J1850 bus. Passive state VPWO from the peripheral logic VPWI toward the J1850 decoder Polarity manager OPTIONS.INPOL OPTIONS.LOOPB MCU VPWO pin MCU VPWI pin JBLPD peripheral MCU 9 |
|
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
