Datasheet

338
SAM7X Series [DATASHEET]
6120K–ATARM–11-Feb-14
31.3 Application Block Diagram
Figure 31-2. Application Block Diagram
31.4 Pin Name List
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.
Table 31-1. I/O Lines Description
Pin Name Pin Description Type
RF Receiver Frame Synchro Input/Output
RK Receiver Clock Input/Output
RD Receiver Data Input
TF Transmitter Frame Synchro Input/Output
TK Transmitter Clock Input/Output
TD Transmitter Data Output
Interrupt
Management
Power
Management
Test
Management
SSC
Serial AUDIO
OS or RTOS Driver
Codec
Frame
Management
Line Interface
Time Slot
Management