SAM3SD8B Atmel Corporation, SAM3SD8B Datasheet - Page 1114

• Manufacturer Part Number: SAM3SD8B
• Manufacturer: Atmel Corporation

40.11.7
1114
1114
SAM3S8/SD8
SAM3S8/SD8
USART in SPI Mode Timings
Timings are given with the following conditions.
VDDIO = 1.62V and 3V
SCK/MISO/MOSI Load = 30 pF
Figure 40-31. USART SPI Master Mode
Figure 40-32. USART SPI Slave Mode: (Mode 1 or 2)
MISO
MOSI
NSS
SCK
NSS
CPOL=1
SCK
CPOL=0
MISO
MOSI
SPI
SPI
12
• the MOSI line drives the input pin RXD
• the MISO line is driven by the output pin TXD
• the SCK line drives the input pin SCK
• the NSS line drives the input pin CTS
SPI
4
3
• the MOSI line is driven by the output pin TXD
• the MISO line drives the input pin RXD
• the SCK line is driven by the output pin SCK
• the NSS line is driven by the output pin RTS
MSB
SPI
SPI
4
6
SPI
SPI
1
7
SPI
2
SPI
8
SPI
0
LSB
SPI
13
11090A–ATARM–10-Feb-12
11090A–ATARM–10-Feb-12
SPI
5