Xilinx MIcroblaze Development Spartan-3E 1600E User Manual
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MicroBlaze Development Kit Spartan-3E 1600 Edition User Guide
UG257 (v1.1) December 5, 2007
Appendix Appendix B:
Example User Constraints File (UCF)
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# These are shared connections with the FX connector
NET "LED<0>" LOC = "D4" | IOSTANDARD = SSTL2_I ;
NET "LED<1>" LOC = "C3" | IOSTANDARD = LVTTL | SLEW = SLOW | DRIVE = 8 ; # FX2-IO39
NET "LED<2>" LOC = "D6" | IOSTANDARD = LVTTL | SLEW = SLOW | DRIVE = 8 ; # FX2-IO38
NET "LED<3>" LOC = "E6" | IOSTANDARD = LVTTL | SLEW = SLOW | DRIVE = 8 ; # FX2-IO37
NET "LED<4>" LOC = "D13" | IOSTANDARD = LVTTL | SLEW = SLOW | DRIVE = 8 ; # FX2-IO36
NET "LED<5>" LOC = "A7" | IOSTANDARD = LVTTL | SLEW = SLOW | DRIVE = 8 ; # FX2-IO35
NET "LED<6>" LOC = "G9" | IOSTANDARD = LVTTL | SLEW = SLOW | DRIVE = 8 ; # FX2-IO34
NET "LED<7>" LOC = "A8" | IOSTANDARD = LVTTL | SLEW = SLOW | DRIVE = 8 ; # FX2-IO33
#
# ==== Character LCD (LCD) ====
NET "LCD_E" LOC = "M18" | IOSTANDARD = LVCMOS33 | DRIVE = 4 | SLEW = SLOW ;
NET "LCD_DI" LOC = "L18" | IOSTANDARD = LVCMOS33 | DRIVE = 4 | SLEW = SLOW ;
NET "LCD_RW" LOC = "L17" | IOSTANDARD = LVCMOS33 | DRIVE = 4 | SLEW = SLOW ;
NET "LCD_RET" LOC = "E3" | IOSTANDARD = SSTL2_I ;
NET "LCD_CS1" LOC = "P3" | IOSTANDARD = SSTL2_I ;
NET "LCD_CS2" LOC = "P4" | IOSTANDARD = SSTL2_I ;
# LCD data connections are shared with StrataFlash connections SF_D<15:8>
#NET "SF_D<8>" LOC = "R15" | IOSTANDARD = LVCMOS33 | DRIVE = 4 | SLEW = SLOW ;
#NET "SF_D<9>" LOC = "R16" | IOSTANDARD = LVCMOS33 | DRIVE = 4 | SLEW = SLOW ;
#NET "SF_D<10>" LOC = "P17" | IOSTANDARD = LVCMOS33 | DRIVE = 4 | SLEW = SLOW ;
#NET "SF_D<11>" LOC = "M15" | IOSTANDARD = LVCMOS33 | DRIVE = 4 | SLEW = SLOW ;
#NET "SF_D<12>" LOC = "M16" | IOSTANDARD = LVCMOS33 | DRIVE = 4 | SLEW = SLOW ;
#NET "SF_D<13>" LOC = "P6" | IOSTANDARD = LVCMOS33 | DRIVE = 4 | SLEW = SLOW ;
#NET "SF_D<14>" LOC = "R8" | IOSTANDARD = LVCMOS33 | DRIVE = 4 | SLEW = SLOW ;
#NET "SF_D<15>" LOC = "T8" | IOSTANDARD = LVCMOS33 | DRIVE = 4 | SLEW = SLOW ;
#
# ==== PS/2 Mouse/Keyboard Port (PS2) ====
NET "PS2_CLK" LOC = "G14" | IOSTANDARD = LVCMOS33 | DRIVE = 8 | SLEW = SLOW ;
NET "PS2_DATA" LOC = "G13" | IOSTANDARD = LVCMOS33 | DRIVE = 8 | SLEW = SLOW ;
#
# ==== Analog-to-Digital Converter (ADC) ====
# some connections shared with SPI Flash, DAC, ADC, and AMP
NET "AD_CONV" LOC = "P11" | IOSTANDARD = LVCMOS33 | SLEW = SLOW | DRIVE = 6 ;
# ==== Programmable Gain Amplifier (AMP) ====
# some connections shared with SPI Flash, DAC, ADC, and AMP
NET "AMP_CS" LOC = "N7" | IOSTANDARD = LVCMOS33 | SLEW = SLOW | DRIVE = 6 ;
NET "AMP_DOUT" LOC = "E18" | IOSTANDARD = LVCMOS33 ;
NET "AMP_SHDN" LOC = "P7" | IOSTANDARD = LVCMOS33 | SLEW = SLOW | DRIVE = 6 ;
#
# ==== Digital-to-Analog Converter (DAC) ====
# some connections shared with SPI Flash, DAC, ADC, and AMP
NET "DAC_CLR" LOC = "P8" | IOSTANDARD = LVCMOS33 | SLEW = SLOW | DRIVE = 8 ;
NET "DAC_CS" LOC = "N8" | IOSTANDARD = LVCMOS33 | SLEW = SLOW | DRIVE = 8 ;
#
# ==== 1-Wire Secure EEPROM (DS)
NET "DS_WIRE" LOC = "U4" | IOSTANDARD = LVTTL | SLEW = SLOW | DRIVE = 8 ; # SD0
#
# ==== Ethernet PHY (E) ====
NET "E_COL" LOC = "U6" | IOSTANDARD = LVCMOS33 ;
NET "E_CRS" LOC = "U13" | IOSTANDARD = LVCMOS33 ;
NET "E_MDC" LOC = "P9" | IOSTANDARD = LVCMOS33 | SLEW = SLOW | DRIVE = 8 ;
NET "E_MDIO" LOC = "U5" | IOSTANDARD = LVCMOS33 | SLEW = SLOW | DRIVE = 8 ;
NET "E_RX_CLK" LOC = "V3" | IOSTANDARD = LVCMOS33 ;
NET "E_RX_DV" LOC = "V2" | IOSTANDARD = LVCMOS33 ;
NET "E_RXD<0>" LOC = "V8" | IOSTANDARD = LVCMOS33 ;
NET "E_RXD<1>" LOC = "T11" | IOSTANDARD = LVCMOS33 ;
NET "E_RXD<2>" LOC = "U11" | IOSTANDARD = LVCMOS33 ;
NET "E_RXD<3>" LOC = "V14" | IOSTANDARD = LVCMOS33 ;