Datasheet

44. Synchronous Serial Controller (SSC)

44.1 Description

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 use of DMA enable a continuous high bit rate data transfer without

processor intervention.

Featuring connection to the DMA, the SSC enables interfacing with low processor overhead to:

• Codecs in Master or Slave mode

• DAC through dedicated serial interface, particularly I2S

• Magnetic card reader

44.2 Embedded Characteristics

• Provides Serial Synchronous Communication Links Used in Audio and Telecom Applications

• Contains an Independent Receiver and Transmitter and a Common Clock Divider

• Interfaced with the DMA Controller (DMAC) to Reduce Processor Overhead

• Offers a Configurable Frame Sync and Data Length

• Receiver and Transmitter Can be Programmed to Start Automatically or on Detection of Different Events on the

Frame Sync Signal

• Receiver and Transmitter Include a Data Signal, a Clock Signal and a Frame Sync Signal

SAM E70/S70/V70/V71 Family

Synchronous Serial Controller (SSC)

echnology Inc.

Datasheet

DS60001527D-page 1112