
8
SAM4N Series [SUMMARY DATASHEET]
11158AS–ATARM–06-Jun-13
PIO Controller - PIOA - PIOB - PIOC
PA0 - PA31
Parallel IO Controller A
I/O
VDDIO
Pulled-up input at
reset
PB0 - PB14
Parallel IO Controller B
I/O
VDDIO
Pulled-up input at
reset
PC0 - PC31
Parallel IO Controller C
I/O
VDDIO
Pulled-up input at
reset
Universal Synchronous Asynchronous Receiver Transmitter USARTx
SCKx
USARTx Serial Clock
I/O
TXDx
USARTx Transmit Data
I/O
RXDx
USARTx Receive Data
Input
RTSx
USARTx Request To Send
Output
CTSx
USARTx Clear To Send
Input
Timer/Counter - TCx
TCLKx
TC Channel x External Clock Input
Input
TIOAx
TC Channel x I/O Line A
I/O
TIOBx
TC Channel x I/O Line B
I/O
Pulse Width Modulation Controller- PWMC
PWM
PWM Waveform Output for channel
Output
Serial Peripheral Interface - SPI
MISO
Master In Slave Out
I/O
MOSI
Master Out Slave In
I/O
SPCK
SPI Serial Clock
I/O
NPCS0
SPI Peripheral Chip Select 0
I/O
Low
NPCS1 - NPCS3
SPI Peripheral Chip Select
Output
Low
Two-Wire Interface- TWIx
TWDx
TWIx Two-wire Serial Data
I/O
TWCKx
TWIx Two-wire Serial Clock
I/O
Analog
ADVREF
ADC and DAC Reference
Analog
10-bit Analog-to-Digital Converter - ADCC
AD0 - AD15
Analog Inputs
Analog
ADTRG
ADC Trigger
Input
Digital-to-Analog Converter - DAC
DAC0
DAC Channel Analog Output
Analog
DACTRG
DAC Trigger
Input
Table 3-1.
Signal Description List
Signal Name
Function
Type
Active
Level
Voltage
Reference
Comments