Datasheet

746
SAM4S Series [DATASHEET]
11100F–ATARM–29-Jan-14
36.3 Block Diagram
Figure 36-1. USART Block Diagram
Table 36-1. SPI Operating Mode
Pin USART SPI Slave SPI Master
RXD RXD MOSI MISO
TXD TXD MISO MOSI
RTS RTS CS
CTS CTS CS
(Peripheral) DMA
Controller
Channel Channel
Interrupt
Controller
Receiver
USART
Interrupt
RXD
TXD
SCK
USART
PIO
Controller
CTS
RTS
DTR
DSR
DCD
RI
Transmitter
Modem
Signals
Control
Baud Rate
Generator
User Interface
PMC
MCK
SLCK
DIV
MCK/DIV
APB