Atmel ARM-Based Evaluation Kit for SAM4S16C, 32-Bit ARM® Cortex® Microcontroller ATSAM4S-WPIR-RD ATSAM4S-WPIR-RD Data Sheet
Product codes
ATSAM4S-WPIR-RD
SAM4S Series [DATASHEET]
Atmel-11100G-ATARM-SAM4S-Datasheet_27-May-14
620
32.5
Pin Name List
32.6
Product Dependencies
32.6.1 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
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
Before using the SSC transmitter, the PIO controller must be configured to dedicate the SSC transmitter I/O lines
to the SSC peripheral mode.
32.6.2 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.
32.6.3 Interrupt
The SSC interface has an interrupt line connected to the interrupt controller. Handling interrupts requires
programming the interrupt controller before configuring the SSC.
All SSC interrupts can be enabled/disabled configuring the SSC Interrupt mask register. Each pending and
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.
Table 32-1.
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
Table 32-2.
I/O Lines
Instance
Signal
I/O Line
Peripheral
SSC
RD
PA18
A
SSC
RF
PA20
A
SSC
RK
PA19
A
SSC
TD
PA17
A
SSC
TF
PA15
A
SSC
TK
PA16
A
Table 32-3.
Peripheral IDs
Instance
ID
SSC
22