 |
Electronic Components Datasheet Search |
|
|
Electronic Components Datasheet Search |
|
STM8S Datasheet(PDF) 275 Page - STMicroelectronics |
|
|
|||||||||||||||||||||||||||||
STM8S Datasheet(HTML) 275 Page - STMicroelectronics |
|
|
275 / 467 page  DocID14587 Rev 14 275/467 RM0016 Serial peripheral interface (SPI) 287 Figure 99. TXE/BSY behavior when transmitting (BDM = 0 and RXLONY = 0). Case of discontinuous transfers 20.3.6 CRC calculation A CRC calculator has been implemented for communication reliability. Separate CRC calculators are implemented for transmitted data and received data. The CRC is calculated using a programmable polynomial serially on each bit. The CRC is calculated on the sampling clock edge defined by the CPHA and CPOL bits in the SPI_CR1 register. CRC calculation is enabled by setting the CRCEN bit in the SPI_CR1 register. This action resets the CRC registers (SPI_RXCRCR and SPI_TXCRCR). When the CRCNEXT bit in SPI_CR2 is set, the SPI_TXCRCR value is transmitted at the end of the current byte transmission. If a byte is present in the Tx buffer, the CRC value is transmitted only after the transmission of this byte. During the transmission of CRC, the CRC calculator is switched off and the register value remains unchanged. The CRCERR flag in the SPI_SR register is set if the value received in the shift register during the SPI_TXCRCR value transmission does not match the SPI_RXCRCR value. |
|
Link URL |
| Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Contact us | Privacy Policy | Link to Datasheet | Link Exchange | Manufacturer List 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 |
English ▼
English
Chinese
German
Japanese
Russian
Korean
Spanish
French
Italian
Portuguese
Polish
Vietnamese
Indian
Mexican
British
New Zealand
