Datasheet

SAM9261 [DATASHEET]

Atmel-6062O-ATARM-SAM9261-Datasheet_21-Jun-16

9.7 Serial Peripheral Interface

 Supports communication with serial external devices

 Four chip selects with external decoder support allow communication with up to fifteen peripherals

 Serial memories, such as DataFlash and 3-wire EEPROMs

 Serial peripherals, such as ADCs, DACs, LCD Controllers, CAN Controllers and Sensors

 External co-processors

 Master or slave serial peripheral bus interface

 8 to 16-bit programmable data length per chip select

 Programmable phase and polarity per chip select

 Programmable transfer delays between consecutive transfers and between clock and data per chip

select

 Programmable delay between consecutive transfers

 Selectable mode fault detection

 Very fast transfers supported

 Transfers with baud rates up to MCK

 The chip select line may be left active to speed up transfers on the same device

9.8 Two-wire Interface

See Section 30.2 “Embedded Characteristics”.

9.9 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

 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

 IrDA modulation and demodulation

 Communication at up to 115.2 Kbps

 Test Modes

 Remote Loopback, Local Loopback, Automatic Echo