300
AT32UC3A
26.3 Block Diagram
Figure 26-1. USART Block Diagram
Peripheral DMA
Controller
Channel Channel
INTC
Power
Manager
DIV
Receiver
Transmitter
User
Interface
PIO
Controller
RXD
RTS
TXD
CTS
CLK
BaudRate
Generator
USART
Interrupt
CLK_USART
CLK_USART/DIV
USART
Peripheral bus
