Atmel Xplained Pro Evaluation Kit ATSAM4E-XPRO ATSAM4E-XPRO Fiche De Données
Codes de produits
ATSAM4E-XPRO
917
SAM4E [DATASHEET]
Atmel-11157D-ATARM-SAM4E16-SAM4E8-Datasheet_12-Jun-14
Figure 38-38. SPI Transfer Format (CPHA = 1, 8 bits per transfer)
Figure 38-39. SPI Transfer Format (CPHA = 0, 8 bits per transfer)
38.7.8.4 Receiver and Transmitter Control
38.7.8.5 Character Transmission
The characters are sent by writing in the Transmit Holding register (US_THR). An additional condition for
transmitting a character can be added when the USART is configured in SPI Master mode. In the
transmitting a character can be added when the USART is configured in SPI Master mode. In the
6
SCK
(CPOL = 0)
SCK
(CPOL = 1)
MOSI
SPI Master ->TXD
SPI Slave -> RXD
NSS
SPI Master -> RTS
SPI Slave -> CTS
SCK cycle (for reference)
MSB
MSB
LSB
LSB
6
6
5
5
4
4
3
3
2
2
1
1
1
2
3
4
5
7
8
6
MISO
SPI Master ->RXD
SPI Slave -> TXD
SCK
(CPOL = 0)
SCK
(CPOL = 1)
1
2
3
4
5
7
MOSI
SPI Master -> TXD
SPI Slave -> RXD
MISO
SPI Master -> RXD
SPI Slave -> TXD
NSS
SPI Master -> RTS
SPI Slave -> CTS
SCK cycle (for reference)
8
MSB
MSB
LSB
LSB
6
6
5
5
4
4
3
3
1
1
2
2
6