 |
Electronic Components Datasheet Search |
|
|
Electronic Components Datasheet Search |
|
ST7LITE2 Datasheet(PDF) 74 Page - STMicroelectronics |
|
||||||||||||||||||||||||||||||
ST7LITE2 Datasheet(HTML) 74 Page - STMicroelectronics |
|
|
74 / 131 page  ST7LITE2 74/131 SERIAL PERIPHERAL INTERFACE (Cont’d) 11.4.4 Clock Phase and Clock Polarity Four possible timing relationships may be chosen by software, using the CPOL and CPHA bits (See Figure 46). Note: The idle state of SCK must correspond to the polarity selected in the SPICSR register (by pulling up SCK if CPOL=1 or pulling down SCK if CPOL=0). The combination of the CPOL clock polarity and CPHA (clock phase) bits selects the data capture clock edge Figure 46, shows an SPI transfer with the four combinations of the CPHA and CPOL bits. The di- agram may be interpreted as a master or slave timing diagram where the SCK pin, the MISO pin, the MOSI pin are directly connected between the master and the slave device. Note: If CPOL is changed at the communication byte boundaries, the SPI must be disabled by re- setting the SPE bit. Figure 46. Data Clock Timing Diagram SCK MSBit Bit 6 Bit 5 Bit 4 Bit3 Bit 2 Bit 1 LSBit MSBit Bit 6 Bit 5 Bit 4 Bit3 Bit 2 Bit 1 LSBit MISO (from master) MOSI (from slave) SS (to slave) CAPTURE STROBE CPHA =1 MSBit Bit 6 Bit 5 Bit 4 Bit3 Bit 2 Bit 1 LSBit MSBit Bit 6 Bit 5 Bit 4 Bit3 Bit 2 Bit 1 LSBit MISO (from master) MOSI SS (to slave) CAPTURE STROBE CPHA =0 Note: This figure should not be used as a replacement for parametric information. Refer to the Electrical Characteristics chapter. (from slave) (CPOL = 1) SCK (CPOL = 0) SCK (CPOL = 1) SCK (CPOL = 0) 1 |
Similar Part No. - ST7LITE2 |
|
Similar Description - ST7LITE2 |
|
|
Link URL |
| Privacy Policy |
| ALLDATASHEET.COM |
| Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Datasheet Upload | Contact us | Privacy Policy | 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
