AT32UC3L064-D3HES ATMEL [ATMEL Corporation], AT32UC3L064-D3HES Datasheet - Page 364

• Manufacturer Part Number: AT32UC3L064-D3HES
• Manufacturer: ATMEL [ATMEL Corporation]

20.3
Figure 20-1. USART Block Diagram
32099D–06/2010
Block Diagram
Controller
Manager
Interrupt
Power
The USART features three test modes: remote loopback, local loopback and automatic echo.
The USART supports specific operating modes providing interfaces on, LIN and SPI buses and
infrared transceivers. The hardware handshaking feature enables an out-of-band flow control by
automatic management of the pins RTS and CTS.
The USART supports the connection to the Peripheral DMA Controller, which enables data
transfers to the transmitter and from the receiver. The Peripheral DMA Controller provides
chained buffer management without any intervention of the processor.
Table 20-1.
PIN
RXD
Interrupt
USART
CLK_USART
DIV
CLK_USART/DIV
SPI Operating Mode
USART
Peripheral bus
USART
RXD
Channel
Peripheral DMA
Controller
Interface
User
Channel
Transmitter
BaudRate
Generator
Receiver
SPI Slave
MOSI
AT32UC3L016/32/64
Controller
I/O
SPI Master
MISO
RXD
RTS
TXD
CTS
CLK
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