Atmel SAM4S-XPLD Atmel ATSAM4S-XPLD ATSAM4S-XPLD Hoja De Datos

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SAM4S [DATASHEET]

11100E–ATARM–24-Jul-13

The Synchronous Serial Controller (SSC) provides a synchronous communication link with external devices. It supports
many serial synchronous communication protocols generally used in audio and telecom applications such as I2S, Short
Frame Sync, Long Frame Sync, etc.

The SSC contains an independent receiver and transmitter and a common clock divider. The receiver and the transmitter
each interface with three signals: the TD/RD signal for data, the TK/RK signal for the clock and the TF/RF signal for the
Frame Sync. The transfers can be programmed to start automatically or on different events detected on the Frame Sync
signal.

The SSC high-level of programmability and its two dedicated PDC channels of up to 32 bits permit a continuous high bit
rate data transfer without processor intervention.

Featuring connection to two PDC channels, the SSC permits interfacing with low processor overhead to the following:



CODEC’s in master or slave mode



DAC through dedicated serial interface, particularly I2S



Magnetic card reader



Provides serial synchronous communication links used in audio and telecom applications (with CODECs in Master 
or Slave Modes, I

2

S, TDM Buses, Magnetic Card Reader)



Contains an independent receiver and transmitter and a common clock divider



Offers 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