Atmel Evaluation Kit AT91SAM9X25-EK AT91SAM9X25-EK Data Sheet
Product codes
AT91SAM9X25-EK
791
SAM9X25 [DATASHEET]
11054E–ATARM–10-Mar-2014
39.3 Block Diagram
Figure 39-1. USART Block Diagram
Table 39-1. 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
Controller
Receiver
USART
Interrupt
RXD
TXD
SCK
USART
PIO
Controller
CTS
RTS
Transmitter
Baud Rate
Generator
User Interface
PMC
MCK
SLCK
DIV
MCK/DIV
APB