Ucf Location Constraints; Related Resources - Xilinx Spartan-3A User Manual

Chapter 14: 10/100 Ethernet Physical Layer Interface

UCF Location Constraints

Figure 14-3
the I/O pin assignment and the I/O standard used.

Related Resources

Refer to the following links for additional information:
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provides the UCF constraints for the 10/100 Ethernet PHY interface, including
NET "E_COL" LOC = "G12" |
NET "E_CRS" LOC = "H12" |
NET "E_MDC" LOC = "D10" |
NET "E_MDIO" LOC = "E10" |
NET "E_NRST" LOC = "D15" |
NET "E_RX_CLK" LOC = "C12" |
NET "E_RX_DV" LOC = "H10" |
NET "E_RXD<0>" LOC = "G7"
NET "E_RXD<1>" LOC = "G8"
NET "E_RXD<2>" LOC = "G9"
NET "E_RXD<3>" LOC = "H9"
NET "E_RXD<4>" LOC = "G10" |
NET "E_TX_CLK" LOC = "E11" |
NET "E_TX_EN" LOC = "D8"
NET "E_TXD<0>" LOC = "F8"
NET "E_TXD<1>" LOC = "E7"
NET "E_TXD<2>" LOC = "E6"
NET "E_TXD<3>" LOC = "F7"
NET "E_TXD<4>" LOC = "B2"
;
Figure 14-3: UCF Location Constraints for 10/100 Ethernet PHY Inputs
Standard Microsystems SMSC LAN8700 10/100 Ethernet PHY
http://www.smsc.com/main/catalog/lan8700.html
Xilinx OPB Ethernet Media Access Controller (EMAC) (v1.02a)
http://www.xilinx.com/bvdocs/ipcenter/data_sheet/opb_ethernet.pdf
Xilinx OPB Ethernet Lite Media Access Controller (v1.01a)
The Ethernet Lite MAC controller core uses fewer FPGA resources and is ideal for
applications the do not require support for interrupts, back-to-back data transfers, and
statistics counters.
http://www.xilinx.com/bvdocs/ipcenter/data_sheet/opb_ethernetlite.pdf
EDK Documentation
http://www.xilinx.com/ise/embedded/edk_docs.htm
www.xilinx.com
IOSTANDARD = LVCMOS33 |
IOSTANDARD = LVCMOS33 ;
IOSTANDARD = LVCMOS33 |
IOSTANDARD = LVCMOS33 |
IOSTANDARD = LVCMOS33 |
IOSTANDARD = LVCMOS33 ;
IOSTANDARD = LVCMOS33 ;
| IOSTANDARD = LVCMOS33 |
| IOSTANDARD = LVCMOS33 |
| IOSTANDARD = LVCMOS33 |
| IOSTANDARD = LVCMOS33 |
IOSTANDARD = LVCMOS33 ;
IOSTANDARD = LVCMOS33 ;
| IOSTANDARD = LVCMOS33 |
| IOSTANDARD = LVCMOS33 |
| IOSTANDARD = LVCMOS33 |
| IOSTANDARD = LVCMOS33 |
| IOSTANDARD = LVCMOS33 |
| IOSTANDARD = LVCMOS33 |
Spartan-3A/3AN Starter Kit Board User Guide
PULLDOWN ;
SLEW = SLOW | DRIVE
SLEW = SLOW | DRIVE
SLEW = SLOW | DRIVE
PULLUP ;
PULLUP ;
PULLUP ;
PULLUP ;
SLEW = FAST | DRIVE
SLEW = FAST | DRIVE
SLEW = FAST | DRIVE
SLEW = FAST | DRIVE
SLEW = FAST | DRIVE
SLEW = FAST | DRIVE = 4 |
UG334 (v1.0) May 28, 2007
R
= 4;
= 4;
= 4;
= 4;
= 4;
= 4;
= 4;
= 4;
PULLUP