Datasheet

6430FS–ATARM–10-Feb-12

SAM3U Series

12.4 Universal Synchronous Asynchronous Receiver Transmitter (USART)

• Programmable Baud Rate Generator

• 5- to 9-bit full-duplex synchronous or asynchronous serial communications

– 1, 1.5 or 2 stop bits in Asynchronous Mode or 1 or 2 stop bits in Synchronous Mode

– Parity generation and error detection

– Framing error detection, overrun error detection

– MSB- or LSB-first

– Optional break generation and detection

– By 8 or by-16 over-sampling receiver frequency

– Hardware handshaking RTS-CTS

– Receiver time-out and transmitter timeguard

– Optional Multi-drop Mode with address generation and detection

– Optional Manchester Encoding

• RS485 with driver control signal

• ISO7816, T = 0 or T = 1 Protocols for interfacing with smart cards

– NACK handling, error counter with repetition and iteration limit

• SPI Mode

–Master or Slave

– Serial Clock programmable Phase and Polarity

– SPI Serial Clock (SCK) Frequency up to MCK/6

• IrDA modulation and demodulation

– Communication at up to 115.2 Kbps

• Test Modes

– Remote Loopback, Local Loopback, Automatic Echo

12.5 Serial Synchronous Controller (SSC)

• Provides serial synchronous communication links used in audio and telecom applications

(with CODECs in Master or Slave Modes, I

S, TDM Buses, Magnetic Card Reader, ...)

• Contains an independent receiver and transmitter and a common clock divider

• Offers a configurable frame sync and data length

• Receiver and transmitter can be programmed to start automatically or on detection of

different event on the frame sync signal

• Receiver and transmitter include a data signal, a clock signal and a frame synchronization

signal

12.6 Timer Counter (TC)

• Three 16-bit Timer Counter Channels

• Wide range of functions including:

– Frequency Measurement

– Event Counting

– Interval Measurement