SoCKit User Manual
37
www.terasic.com
December 1, 2015
HPS_ENET_TX_EN
TXD[3..0]
GTX_CLK
TX_EN
RXD[3..0]
RX_CLK
RX_DV
MDC
MDIO
INT_N
RESET_N
X1
TXRXP
TXRXM
LED1
LED2
TRD+
TRD-
LED2-1
LED2-2
U13
KSZ9021RN
HPS_ENET_RX_DATA[3..0]
MDI_HPS_N
HPS_ENET_RX_CLK
HPS_ENET_RX_DV
HPS_ENET_MDC
HPS_ENET_MDIO
HPS_ENET_INT_N
HPS_ENET_RESET_N
MDI_HPS_P
LED2_DUAL_1
LED2_DUAL_2
HPS_ENET_TX_DATA[3..0]
HPS_ENET_GTX_CLK
J11
RJ45_1368589_5
OSC_25
Figure 3-22 Connections between Cyclone V SoC FPGA and Ethernet
Table 3-22 Pin Assignments for Ethernet PHY
Signal Name
FPGA Pin No.
Description
I/O Standard
HPS_ENET_TX_EN PIN_A20
GMII and MII transmit enable
3.3V
HPS_ENET_TX_DATA[0] PIN_F20
MII transmit data[0]
3.3V
HPS_ENET_TX_DATA[1] PIN_J19
MII transmit data[1]
3.3V
HPS_ENET_TX_DATA[2] PIN_F21
MII transmit data[2]
3.3V
HPS_ENET_TX_DATA[3] PIN_F19
MII transmit data[3]
3.3V
HPS_ENET_RX_DV
PIN_K17
GMII and MII receive data valid
3.3V
HPS_ENET_RX_DATA[0] PIN_A21
GMII
and MII receive data[0]
3.3V
HPS_ENET_RX_DATA[1] PIN_B20
GMII
and MII receive data[1]
3.3V
HPS_ENET_RX_DATA[2] PIN_B18
GMII
and MII receive data[2]
3.3V
HPS_ENET_RX_DATA[3] PIN_D21
GMII
and MII receive data[3]
3.3V
HPS_ENET_RX_CLK
PIN_G20
GMII and MII receive clock
3.3V
HPS_ENET_RESET_n PIN_E18
Hardware Reset Signal
3.3V
HPS_ENET_MDIO PIN_E21
Management Data
3.3V
HPS_ENET_MDC
PIN_B21
Management Data Clock Reference
3.3V
HPS_ENET_INT_n
PIN_C19
Interrupt Open Drain Output
3.3V
HPS_ENET_GTX_CLK
PIN_H19
GMII Transmit Clock
3.3V
Additionally, the Ethernet PHY (KSZ9021RNI) LED status has been set to tri-color dual LED mode.
The LED control signals are connected to LEDs (orange and green) on the RJ45 connector. States
and definitions can be found in
Table 3-23,
which can display the current status of the Ethernet. For
example once the green LED lights on , the board has been connected to Giga bit Ethernet.