
Ethernet Interface
III-84 Slave Controller – IP Core for Xilinx FPGAs
9.2.4 MII example schematic
Refer to chapter 8.5.1 for more information on special markings (!). Take care of proper compensation
of the TX_CLK phase shift.
EtherCAT IP Core
Ethernet PHY
MII_RX_DV
MII_RX_DATA[3:0]
MII_RX_ERR
MII_TX_ENA
MII_TX_DATA[3:0]
MII_RX_CLK
RX_DV
RXD[3:0]
RX_ER
TX_EN
TXD[3:0]
RX_CLK
TX_CLK
CLK25
CRS
TX_ER
COL
nMII_LINK LINK_STATUS
!
!
! optional
CLK25
PLL
CLK_IN CLK25
CLK100
CLK100
25 MHz
MII_TX_CLK
! optional
MII_TX_SHIFT[1:0]
00/01/10/11
NPHY_RESET_OUT
NRESET
4K7
Figure 32: MII example schematic
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