Board Description
AT91SAM9M10-G45-EK User Guide
4-13
6495B–ATARM–21-Apr-10
Table 4-2.
Pin Mapping for Normal MII and Reduced MII
Pin Name
Normal MII Mode
Reduced MII Mode
SAM9M10
DM9161
SAM9M10
DM9161
ETX0-ETX1
ETX[0:1] transmit data
TXD [0:1]
ETX[0:1]
TXD [0:1]
ETX2-ETX3
ETX[2:3] transmit data
TXD [2:3]
NC
NC
ETXEN
ETXEN: transmit enable
TXEN
ETXEN: transmit enable
TXEN
ETXER
ETXER: transmit error
TXER/TXD[4]
NC
NC
ETXCK/REFCK
ETXCK: transmit clock
TXCLK
REFCK: reference clock
REF_CLK
ERX0-ERX1
ERX[0:1]: receive data
RXD [0:1]
ERX[0:1]: receive data
RXD [0:1]
ERX2-ERX3
ERX[2:3]: receive data
RXD [2:3]
NC
NC
ERXER
ERXER: receive error
RXER/RXD[4]/
RPTR/NODE
ERXER: receive error
RPTR/NODE
ERXDV
ERXDV: receive valid data
RXDV
ECRSDV: carrier sense /
data valid
CRS DV
ERXCK
ERXCK: receive clock
RXCLK
NC
NC
ECOL
ECOL: collision detect
COL
NC
NC
ECRS
ECRS: carrier sense /
data valid
CRS (PHYAD[2:4]
NC
NC
EMDC
EMDC: management data clock
MDC
EMDC: management data
clock
MDC
EMDIO
EMDIO: management data
input / output
MDIO
EMDIO: management data
input / output
MDIO
NRST
NRST: microcontroller reset
RESET# XT1
(25 MHz)
NRST: microcontroller reset
RESET# XT1
(REF_CLK 50MHz)
