SAM7X128_14 Datasheet, PDF (338/662 Pages) ATMEL Corporation – ARM-based Flash MCU

31.3 Application Block Diagram
Figure 31-2. Application Block Diagram
OS or RTOS Driver
Power
Management
Interrupt
Management
Test
Management
Serial AUDIO
Codec
SSC
Time Slot
Frame
Management Management
Line Interface
31.4 Pin Name List
Table 31-1.
Pin Name
RF
RK
RD
TF
TK
TD
I/O Lines Description
Pin Description
Receiver Frame Synchro
Receiver Clock
Receiver Data
Transmitter Frame Synchro
Transmitter Clock
Transmitter Data
Type
Input/Output
Input/Output
Input
Input/Output
Input/Output
Output
31.5 Product Dependencies
31.5.1 I/O Lines
The pins used for interfacing the compliant external devices may be multiplexed with PIO lines.
Before using the SSC receiver, the PIO controller must be configured to dedicate the SSC receiver I/O lines to the SSC
peripheral mode.
Before using the SSC transmitter, the PIO controller must be configured to dedicate the SSC transmitter I/O lines to the
SSC peripheral mode.
31.5.2 Power Management
The SSC is not continuously clocked. The SSC interface may be clocked through the Power Management Controller
(PMC), therefore the programmer must first configure the PMC to enable the SSC clock.
31.5.3 Interrupt
The SSC interface has an interrupt line connected to the Advanced Interrupt Controller (AIC). Handling interrupts
requires programming the AIC before configuring the SSC.
All SSC interrupts can be enabled/disabled configuring the SSC Interrupt mask register. Each pending and unmasked
SSC interrupt will assert the SSC interrupt line. The SSC interrupt service routine can get the interrupt origin by reading
the SSC interrupt status register.
31.6 Functional Description
This chapter contains the functional description of the following: SSC Functional Block, Clock Management, Data format,
Start, Transmitter, Receiver and Frame Sync.
SAM7X Series [DATASHEET]
6120K–ATARM–11-Feb-14
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