Atmel SAM4S-EK2 Atmel ATSAM4S-EK2 ATSAM4S-EK2 Data Sheet

11176A–ATARM–24-Sep-12

This section describes the PIO usage, the jumpers, the test points and the solder drops of a SAM4S-EK2 
board.

Table 4-1.  PIO Port A Pin Assignments and Signal Descriptions 

1

PA0

PWMH0

TIOA0

A17

WKUP0

QTouch slider (left) SNS

2

PA1

PWMH1

TIOB0

A18

WKUP1

QTouch slider (left) SNSK

3

PA2

PWMH2

SCK0

DATRG

WKUP2

QTouch slider (middle) SNS

4

PA3

TWD0

NPCS3

QTouch slider (middle) SNSK

5

PA4

TWCK0

TCLK0

WKUP3

QTouch slider (right) SNS

6

PA5

RXD0

NPCS3

WKUP4

QTouch slider (right) SNSK

7

PA6

TXD0

PCK0

MCI card detection 

8

PA7

RTS0

PWMH3

XIN32

CLK32KHz

9

PA8

CTS0

AD12BTR

G

WKUP5 XOUT32 

CLK32KHz

10

PA9

URXD0 NPCS1

PWMFI0

WKUP6

UART 

receive 

data

11

PA10

UTXD0

NPCS2

UART transmit data

12

PA11

NPCS0

PWMH0

WKUP7

NPCS0# (TSC)    

13

PA12

MISO

PWMH1

MISO_TSC ZigBEE 

MISO

14

PA13

MOSI

PWMH2

MOSI_TSC ZigBEE 

MOSI

15

PA14

SPCK

PWMH3

WKUP8

SPCK_TSC ZigBEE 

CLK

16

PA15

TF

TIOA1

PWML3

WKUP14 / PIO_DCEN1

ZigBEE SLPTR

17

PA16

TK

TIOB1

PWML2

WKUP15 / PIO_DCEN2

IRQ_TSC 

ZigBEE IRQ0

18

PA17

TD

PCK1

PWMH3

AD0

BUSY_TSC

ZigBEE IRQ1

19

PA18

RD

PCK2

A14

AD1

ZigBEE RSTN

20

PA19

RK

PWML0

A15

AD2/ WKUP9

Blue LED (UserLED1)

21

PA20

RF

PWML1

A16

AD3/ WKUP10

Green LED (UserLED2)

22

PA21

RXD1

PCK1

AD8

USART RXD

23

PA22

TXD1

NPCS3

NCS2

AD9

USART TXD

24

PA23

SCK1

PWMH0

A19

POI_DCCLK

USART transceiver enable

25

PA24

RTS1

PWMH1

A20

POI_DC0

USART RTS

26

PA25

CTS1

PWMH2

A23

POI_DC1

USART CTS

27

PA26

DCD1

TIOA2

MCDA2

POI_DC2

MCI data bit 2

28

PA27

DTR1

TIOB2

MCDA3

POI_DC3

MCI data bit 3

29

PA28

DSR1

TCLK1

MCCDA

POI_DC4

MCI command