User manual

Table Of Contents
Zynq-7000 AP SoC Technical Reference Manual www.xilinx.com 528
UG585 (v1.11) September 27, 2016
Chapter 16: Gigabit Ethernet Controller
16.6.5 GMII/MII Interface via EMIO
An example illustrating the GMII interface connections through the PL to the PL pins is shown in
Figure 16-8. Ethernet GMII/MII interface signals routed through the EMIO are identified in
Table 16-12.
Rx data 2 from PHY 0 25 37 RGMII_RX_D2 I
Rx data 3 from PHY 0 26 38 RGMII_RX_D3 I
Table 16-11: Ethernet RGMII Interface Signals via MIO Pins (Contd)
Controller Signal MIO Pins
Signal Description
Default Controller
Input Value
GigE 0 GigE 1 Name I/O
X-Ref Target - Figure 16-8
Figure 16-8: GMII Interface via EMIO Connections
UG585_c16_07_100212
MAC
INTERRUPT
PS
TX
clock
PL
Zynq-7000 AP SoC Device
PHY
1
0
Ethernet
2.5 or 25
MHz Clock
125 MHz
Clock
MDIO
IRQF2Px
MDIO
GMII: Tx Signals
Auto-negotiated Speed
Detection Logic
MDC
MDIO
EMIOENETxMDIOMDC
EMIOENETxMDIO{I, O, TN}
Optional PS7 Wrapper
GIC
EMIOENETxGMIITXCLK
Without Tx Clock
Tx Clock
GMII: Rx Signals
Table 16-12: Ethernet GMII/MII Interface Signals via EMIO Interface
Interface Signal
Reference
Clock
Default Controller
Input Value
EMIO Interface Signals
Name I/O
Carrier sense ~ EMIOENET[1,0]GMIICRS I
Collision detect ~ EMIOENET[1,0]GMIICOL I
Controller Interrupt input ~ EMIOENET[1,0]EXTINTIN I
Tx Signals
Tx Clock ~ EMIOENET[1,0]GMIITXCLK I
Tx Data (7:0) Tx Clk ~ EMIOENET[1,0]GMIITXD[7:0] O