at91rm3400 ATMEL Corporation, at91rm3400 Datasheet - Page 311

• Manufacturer Part Number: at91rm3400
• Description: Atmel Advanced At91 Arm Microcontroller
• Manufacturer: ATMEL Corporation

Serial Synchronous Controller (SSC)
Overview
1790A–ATARM–11/03
The Atmel 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. Transfers contain up to
16 data of up to 32 bits. they can be programmed to start automatically or on different events
detected on the Frame Sync signal.
The SSC’s 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:
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Features of the SSC are:
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CODECs 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
Contains an Independent Receiver and Transmitter and a Common Clock Divider
Interfaced with Two PDC Channels (DMA Access) 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 Event on the Frame Sync Signal
Receiver and Transmitter Include a Data Signal, a Clock Signal and a Frame
Synchronization Signal
AT91RM3400
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