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Zynq-7000 AP SoC Technical Reference Manual www.xilinx.com 527
UG585 (v1.11) September 27, 2016
Chapter 16: Gigabit Ethernet Controller
16.6.4 RGMII Interface via MIO
An example Ethernet communications wiring connection is shown in Figure 16-7
All Ethernet I/O pins routed through the MIO are on MIO Bank 1 (see Table 16-11).The MIO pins and
restrictions based on device version are shown in the MIO table in section 2.5.4 MIO-at-a-Glance
Table.
X-Ref Target - Figure 16-7
Figure 16-7: Ethernet Communications Wiring Connections
UG585_c16_06_022712
MIO
Multiplexer
Ethernet
Controller
Zynq Device
Boundary
External
PHY
Device
RJ-45
Conn.
ENET_RGMII_TX_CLK
ENET_RGMII_TX_CTL
ENET_RGMII_RX_CLK
ENET_RGMII_TXD[3:0]
ENET_RGMII_RXD[3:0]
RGMII
ENET_MDC
ENET_MDIO
MD
ENET_RGMII_RX_CTL
MDI 0 P/N
MDI 1 P/N
MDI 2 P/N
MDI 3 P/N
Table 16-11: Ethernet RGMII Interface Signals via MIO Pins
Controller Signal MIO Pins
Signal Description
Default Controller
Input Value
GigE 0 GigE 1 Name I/O
Tx clock to PHY ~ 16 28 RGMII_TX_CLK O
Tx control to PHY ~ 21 33 RGMII_TX_CTL O
Tx data 0 to PHY ~ 17 29 RGMII_TX_D0 O
Tx data 1 to PHY ~ 18 30 RGMII_TX_D1 O
Tx data 2 to PHY ~ 19 31 RGMII_TX_D2 O
Tx data 3 to PHY ~ 20 32 RGMII_TX_D3 O
Rx clock from PHY 0 22 34 RGMII_RX_CLK I
Rx control from PHY 0 27 39 RGMII_RX_CTL I
Rx data 0 from PHY 0 23 35 RGMII_RX_D0 I
Rx data 1 from PHY 0 24 36 RGMII_RX_D1 I