Xilinx Virtex-4 - Page 106

106 www.xilinx.com Embedded Tri-Mode Ethernet MAC User Guide
UG074 (v2.2) February 22, 2010
Chapter 4: Physical Interface
R
Figure 4-6: Ethernet MAC Configured in GMII Mode
GMII
Ethernet
MAC
GMII_RX_CLK_#
GMII_RXD[7:0]_#
GMII_RX_DV_#
GMII_RX_ER_#
MII_TX_CLK_#
GTX_CLK
DCREMACABUS[8:9]
DCREMACCLK
DCREMACDBUS[0:31]
DCREMACREAD
DCREMACWRITE
DCRHOSTDONEIR
EMAC#CLIENTRXD[15:0]
EMAC#CLIENTRXDVLD
EMAC#CLIENTRXDVLDMSW
EMAC#CLIENTRXGOODFRAME
EMAC#CLIENTRXBADFRAME
EMAC#CLIENTRXFRAMEDROP
CLIENTEMAC#TXFIRSTBYTE
EMAC#CLIENTTXCOLLISION
HOSTADDR[9:0]
HOSTCLK
HOSTMIIMSEL
HOSTOPCODE[1:0]
HOSTREQ
HOSTMIIMRDY
HOSTRDDATA[31:0]
HOSTWRDATA[31:0]
DCREMACENABLE
EMACDCRACK
EMACDCRDBUS[0:31]
EMAC#CLIENTRXSTATS[6:0]
EMAC#CLIENTRXSTATSBYTEVLD
EMAC#CLIENTRXSTATSVLD
CLIENTEMAC#TXD[15:0]
CLIENTEMAC#TXDVLD
CLIENTEMAC#TXDVLDMSW
EMAC#CLIENTTXACK
EMAC#CLIENTTXRETRANSMIT
EMAC#CLIENTTXSTATS
EMAC#CLIENTTXSTATSBYTEVLD
EMAC#CLIENTTXSTATSVLD
HOSTEMAC1SEL
CLIENTEMA
C#PAUSEREQ
CLIENTEMAC#PAUSEVAL[15:0]
CLIENTEMAC#TXUNDERRUN
CLIENTEMAC#TXIFGDELAY[7:0]
EMAC#CLIENTRXCLIENTCLKOUT
CLIENTEMAC#RXCLIENTCLKIN
EMAC#CLIENTTXCLIENTCLKOUT
CLIENTEMAC#TXCLIENTCLKIN
GMII_TX_CLK_#
EMAC#CLIENTRXDVREG6
RESET
DCR Host
Flow
Control
TX Client RX Client
Physical Interface
WRAPPER
VHDL/Verilog
CLIENTEMAC#DCMLOCKED
ug074_3_52_032207
GMII_COL_#
GMII_CRS_#
GMII_TXD[7:0]_#
GMII_TX_EN_#
GMII_TX_ER_#
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