Atmel SAM4L-EK Atmel ATSAM4L-EK ATSAM4L-EK Data Sheet
Product codes
ATSAM4L-EK
675
42023E–SAM–07/2013
ATSAM4L8/L4/L2
Figure 26-9. Slave Mode Functional Block Diagram
Shift Register
SPCK
SPIENS
LSB
MSB
NSS
MOSI
SPI
Clock
TDRE
TDR
TD
RDRF
OVRES
CSR0
CPOL
NCPHA
BITS
SPIEN
SPIDIS
MISO
UNDES
RDR
RD
4 - Character FIFO
0
1
RXFIFOEN