OMAP-L137
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SPRS563G – SEPTEMBER 2008 – REVISED JUNE 2014
3.7.17 Ethernet Media Access Controller (EMAC)
Table 3-21. Ethernet Media Access Controller (EMAC) Terminal Functions
PIN
NO
SIGNAL NAME
TYPE
(1)
PULL
(2)
MUXED
DESCRIPTION
ZKB
RMII
EMAC 50-MHz
AHCLKR0/
RMII_MHZ_50_CLK
/GP2[14]/BOOT[11]
A4
I/O
IPD
McASP0, GPIO, BOOT
clock input or output
EMAC RMII receiver
AXR0[6]/
RMII_RXER
/ACLKR2/GP3[6]
D7
I
IPD
error
AXR0[5]/
RMII_RXD[1]
/AFSX2/GP3[5]
C7
I
IPD
EMAC RMII receive
data
AXR0[4]/
RMII_RXD[0]
/AXR2[1]/GP3[4]
B7
I
IPD
EMAC RMII carrier
AXR0[3]/
RMII_CRS_DV
/AXR2[2]/GP3[3]
A7
I
IPD
McASP0, McASP2, GPIO
sense data valid
EMAC RMII transmit
AXR0[2]/
RMII_TXEN
/AXR2[3]/GP3[2]
D8
O
IPD
enable
AXR0[1]/
RMII_TXD[1]
/ACLKX2/GP3[1]
C8
O
IPD
EMAC RMII trasmit
data
AXR0[0]/
RMII_TXD[0]
/AFSR2/GP3[0]
B8
O
IPD
MDIO
AXR0[8]/
MDIO_D
/GP3[8]
B6
I/O
IPU
MDIO serial data
McASP0, GPIO
AXR0[7]/
MDIO_CLK
/GP3[7]
A6
O
IPD
MDIO clock
(1)
I = Input, O = Output, I/O = Bidirectional, Z = High impedance, PWR = Supply voltage, GND = Ground, A = Analog signal.
Note:
The pin type shown refers to the input, output or high-impedance state of the pin function when configured as the the signal name
highlighted in bold. All multiplexed signals may enter a high-impedance state when the configured function is input-only or the configured
function supports high-Z operation. All GPIO signals can be used as input or output. For multiplexed pins where functions have different
types (ie., input versus output), the table reflects the pin function direction for that particular peripheral.
(2)
IPD = Internal Pulldown resistor, IPU = Internal Pullup resistor
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