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AT91SAM9XE-EK Evaluation Board User Guide 3-7
6311A–ATARM–04-Feb-08
3.14 PIO Usage
Table 3-1. PIO Controller A
I/O Line Peripheral A Peripheral B Comments Function
PA0 SPI0_MISO MCDB0 SPI DATAFLASH, SPI/MCI SD/MMC/DATAFLASH Slot
PA1 SPI0_MOSI MCCDB (PA0..PA5)
PA2 SPI0_SPC K
PA3 SPI0_NPCS0 MCDB3
PA4 RTS2 MCDB2
PA5 CT S2 MCDB1
PA6 MCDA0 User LED
PA7 MCCDA ETHERNET DM9161A MII/RMII (IRQ)
PA8 MCCK MCI SD/MMC/DATAFLASH Slot
PA9 MCDA1 Power LED
PA10 MCDA2 ETX2 ETHERNET DM9161A MII Interface (PA10..PA11)
PA11 MCDA3 ETX3
PA12 ETX0 ETHERNET DM9161A RMII Interface (PA12..PA19)
PA13 ETX1
PA14 ERX0
PA15 ERX1
PA16 ETXEN
PA17 ERXDV
PA18 E RXER
PA19 ETXCK
PA20 EMDC ETHERNET DM9161A MII/RMII Interface (PA20..PA21)
PA21 E MD IO
PA22 ADTRG ETXER ETHERNET DM9161A MII Interface
PA23 TWD ETX2 SERIAL EEPROM (SDA)
PA24 TWCK ETX3 SERIAL EEPROM (SCL)
PA25 TCLK0 ERX2 ETHERNET DM9161A MII Interface (PA25..PA29)
PA26 TIOA0 ERX3 High-Drive
PA27 TIOA1 ERXCK High-Drive
PA28 TIOA2 ECRS High-Drive
PA29 SCK1 ECOL
PA30 SCK2 RXD4 (BP3) User's interface Push Button
PA31 SCK0 TXD4 (BP4) User's interface Push Button