at32uc3b0512-z2ues ATMEL Corporation, at32uc3b0512-z2ues Datasheet - Page 336

• Manufacturer Part Number: at32uc3b0512-z2ues
• Description: 32-bit Avr Microcontroller
• Manufacturer: ATMEL Corporation

Figure 21-37. SPI Transfer Format (CPHA=1, 8 bits per transfer)
Figure 21-38. SPI Transfer Format (CPHA=0, 8 bits per transfer)
32059J–12/2010
SPI Master -> RXD
CLK cycle (for reference)
SPI Master -> TXD
SPI Master -> RTS
SPI Master ->RXD
SPI Master ->TXD
SPI Master ->RTS
SPI Slave -> RXD
SPI Slave -> TXD
SPI Slave -> CTS
CLK cycle (for reference)
SPI Slave ->RXD
SPI Slave ->TXD
SPI Slave ->CTS
(CPOL= 0)
(CPOL= 0)
(CPOL= 1)
(CPOL= 1)
MOSI
MISO
MOSI
MISO
CLK
NSS
CLK
CLK
NSS
CLK
MSB
1
MSB
1
MSB
MSB
2
6
6
2
6
6
3
5
5
3
5
5
4
4
4
4
4
4
5
3
3
5
3
3
6
2
2
6
2
2
7
1
1
7
1
1
8
LSB
LSB
AT32UC3B
8
LSB
LSB
336