Atmel AT91SAM9G45-EKES User Manual page 21

Board Description
Table 4-2. Pin Mapping for Normal MII and Reduced MII
Pin Name
ETX0-ETX1 ETX[0:1] transmit data
ETX2-ETX3 ETX[2:3] transmit data
ETXEN ETXEN: transmit enable
ETXER ETXER: transmit error
ETXCK/REFCK ETXCK: transmit clock
ERX0-ERX1 ERX[0:1]: receive data
ERX2-ERX3 ERX[2:3]: receive data
ERXER ERXER: receive error
ERXDV ERXDV: receive valid data
ERXCK ERXCK: receive clock
ECOL ECOL: collision detect
ECRS: carrier sense /
ECRS
data valid
EMDC EMDC: management data clock
EMDIO: management data
EMDIO
input / output
NRST NRST: microcontroller reset
4-12
6481B–ATARM–27-Nov-09
Normal MII Mode
SAM9G45
TXD [0:1]
TXD [2:3]
TXEN
TXER/TXD[4]
TXCLK
RXD [0:1]
RXD [2:3]
RXER/RXD[4]/
RPTR/NODE
RXDV
RXCLK
COL
CRS (PHYAD[2:4]
MDC
MDIO
RESET# XT1
(25 MHz)
DM9161 SAM9G45
ETX[0:1]
NC
ETXEN: transmit enable
NC
REFCK: reference clock
ERX[0:1]: receive data
NC
ERXER: receive error
ECRSDV: carrier sense /
data valid
NC
NC
NC
EMDC: management data
clock
EMDIO: management data
input / output
NRST: microcontroller reset
Reduced MII Mode
DM9161
TXD [0:1]
NC
TXEN
NC
REF_CLK
RXD [0:1]
NC
RPTR/NODE
CRS DV
NC
NC
NC
MDC
MDIO
RESET# XT1
(REF_CLK 50MHz)
AT91SAM9G45-EKES User Guide