Atmel ATSAM3U-EK Data Sheet
Evaluation Kit Hardware
SAM3U-EK Evaluation Kit User Guide
4-19
6478E–ATARM–30-Mar-11
4.4
Configuration
This section describes the PIO usage, the jumpers, the test points and the solder drops of a SAM3U-EK
board.
board.
4.4.1
PIO Usage
Table 4-5. PIO Port A Assignment
I/O Line
Peripheral A
Peripheral B
Extra Function
EK Usage
Device
PA0
TIOB0 NPCS1
WKUP0
IRQ0_ZBEE/
VBUS_USB
ZigBee, USB
PA1
TIOA0
NPCS2
WKUP1
IRQ0_ZBEE
ZigBee
PA2
TCLK0
AD12BTRG
WKUP2
BUSY_TSC
Touch Screen
PA3
MCCK
PCK1
MCCK
SD/MMC
PA4
MCCDA
PWMH0
MCCDA
SD/MMC
PA5
MCDA0
PWMH1
MCDA0
SD/MMC
PA6
MCDA1
PWMH2
MCDA1
SD/MMC
PA7
MCDA2
PWML0
MCDA2
SD/MMC
PA8
MCDA3
PWML1
MCDA3
SD/MMC
PA9
TWD0
PWML2
WKUP3
TWD0
Codec, Temp sensor
PA10
TWCK0
PWML3
WKUP4
TWCK0
Codec, Temp sensor
PA11
URXD
PWMFI0
URXD
UART
PA12
UTXD
PWMFI1
URXD
UART
PA13
MISO
MISO
Touch panel, ZigBee
PA14
MOSI
MOSI
Touch panel, ZigBee
PA15
SPCK
PWMH2
SPCK
Touch panel, ZigBee
PA16
NPCS0
NCS1
WKUP5
SPIO_NPCS0#
ZigBee
PA17
SCK0
ADTRG
WKUP6
TEMP_ALARM
Temp sensor
PA18
TXD0
PWMFI2
WKUP7
BP_LEFT#
User Button
PA19
RXD0
NPCS3
WKUP8
BP_RIGHT#
User Button
PA20
TXD1
PWMH3
WKUP9
TXD1
USART
PA21
RXD1
PCK0
WKUP10
RXD1
USART
PA22
TXD2
RTS1
AD12B0
RTS1
USART
PA23
RXD2
CTS1
CTS1
USART
PA24
TWD1
SCK1
WKUP11
IRQ_TSC
Touch Screen
PA25
TWCK1
SCK2
WKUP12
MCI_CD
SD/MMC
PA26
TD
TCLK2
TD
Audio codec
PA27
RD
PCK0
RD
Audio codec
PA28
TK
PWMH0
TK
Audio codec