 |
поискавой системы для электроныых деталей |
|
|
поискавой системы для электроныых деталей |
|
ANSELA датащи(PDF) 179 Page - Microchip Technology |
|
|
|||||||||||||||||||||||||||||
ANSELA датащи(HTML) 179 Page - Microchip Technology |
|
|
179 / 222 page  2013 Microchip Technology Inc. DS22331A-page 179 MCP19111 27.5.13.3 Bus Collision During a Stop Condition Bus collision occurs during a Stop condition if: a) After the SDA pin has been deasserted and allowed to float high, SDA is sampled low after the BRG has timed out. b) After the SCL pin is deasserted, SCL is sampled low before SDA goes high. The Stop condition begins with SDA asserted low. When SDA is sampled low, the SCL pin is allowed to float. When the pin is sampled high (clock arbitration), the Baud Rate Generator is loaded with SSPADD and counts down to 0. After the BRG times out, SDA is sampled. If SDA is sampled low, a bus collision has occurred. This is due to another master attempting to drive a data ‘0’ (Figure 27-30). If the SCL pin is sampled low before SDA is allowed to float high, a bus collision occurs. This is another case of another master attempting to drive a data ‘0’ (Figure 27-31). FIGURE 27-30: BUS COLLISION DURING A STOP CONDITION (CASE 1) FIGURE 27-31: BUS COLLISION DURING A STOP CONDITION (CASE 2) SDA SCL BCLIF PEN P SSPIF TBRG TBRG TBRG SDA asserted low SDA sampled low after TBRG, set BCLIF ’0’ ’0’ SDA SCL BCLIF PEN P SSPIF TBRG TBRG TBRG Assert SDA SCL goes low before SDA goes high, set BCLIF ’0’ ’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
