RM46L450
RM46L850
SPNS184 –SEPTEMBER 2012
www.ti.com
2.3.2.13 Ethernet Controller
Table 2-37. ZWT Ethernet Controller: MDIO Interface
Terminal
Signal
Type
Default
Pull State
Pull Type
Description
Signal Name
337
ZWT
MIBSPI3NCS[1]/N2HET1[25]/MDCLK
MIBSPI1NCS[2]/N2HET1[19]/MDIO
V5
G3
Output Pull Up
I/O Pull Up
-
Serial clock output
Fixed, 20uA
Serial data input/output
Table 2-38. ZWT Ethernet Controller: Reduced Media Independent Interface (RMII)
Terminal
Signal
Type
Default
Pull State
Pull Type
Description
Signal Name
337
ZWT
N2HET1[12]/MII_CRS/RMII_CRS_DV
B4
Input Pull Down Fixed, 20uA
RMII carrier sense and
data valid
N2HET1[28]/MII_RX_CLK/RMII_REFCLK/MII_RX_AVCLK4
K19
RMII synchronous
reference clock for
receive, transmit and
control interface
AD1EVT/MII_RX_ER/RMII_RX_ER
N19
P1
RMII receive error
RMII receive data
N2HET1[24]/MIBSPI1NCS[5]/MII_RXD[0]/RMII_RXD[0]
N2HET1[26]/MII_RXD[1]/RMII_RXD[1]
MIBSPI5SOMI[0]/MII_TXD[0]/RMII_TXD[0]
MIBSPI5SIMO[0]/MII_TXD[1]/RMII_TXD[1]
MIBSPI5CLK//MII_TXEN/RMII_TXEN
A14
J18
J19
H19
Output Pull Up
-
RMII transmit data
RMII transmit enable
Table 2-39. ZWT Ethernet Controller: Media Independent Interface (MII)
Terminal
Signal
Type
Default
Pull State
Pull Type
Description
Signal Name
337
ZWT
MIBSPI1NCS[1]/N2HET1[17]/MII_COL/
F3
Input Pull Up
-
Collision detect
USB1.SUSPEND/EQEP1S
N2HET1[12]/MII_CRS/RMII_CRS_DV
B4
Pull Down Fixed, 20uA
Pull Down
Carrier sense and receive
valid
N2HET1[28]/MII_RXCLK/RMII_REFCLK/MII_RX_AVCLK4
N2HET1[30]/MII_RX_DV/USB1.SPEED/EQEP2S
AD1EVT/MII_RX_ER/RMII_RX_ER
K19
B11
N19
K19
P1
I/O
-
MII output receive clock
Received data valid
Receive error
Input Pull Down Fixed, 20uA
N2HET1[28]/MII_RX_CLK/RMII_REFCLK/MII_RX_AVCLK4
N2HET1[24]/MIBSPI1NCS[5]/MII_RXD[0]/RMII_RXD[0]
N2HET1[26]/MII_RXD[1]/RMII_RXD[1]
I/O
Receive clock
Input
Receive data
A14
G19
MIBSPI1NENA/N2HET1[23]/MII_RXD[2]/
Pull Up
Fixed, 20uA
USB1.VP/ECAP4
MIBSPI5NENA/MII_RXD[3]/USB1.VM/MIBSPI5SOMI[1]/ECA
P5
H18
D19
D19
N2HET1[10]/MII_TX_CLK/USB1.TXEN/
MII_TX_AVCLK4/nTZ3
I/O
Pull Down
-
MII output transmit clock
Transmit clock
N2HET1[10]/MII_TX_CLK/USB1.TXEN
/MII_TX_AVCLK4/nTZ3
34
Device Package and Terminal Functions
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