Ucf location constraints – Xilinx MIcroblaze Development Spartan-3E 1600E User Manual
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MicroBlaze Development Kit Spartan-3E 1600 Edition User Guide
61
UG257 (v1.1) December 5, 2007
UCF Location Constraints
R
UCF Location Constraints
Figure 7-2
and
Figure 7-3
provide the UCF constraints for the DTE and DCE RS-232 ports,
respectively, including the I/O pin assignment and the I/O standard used.
Figure 7-2:
UCF Location Constraints for DTE RS-232 Serial Port
Figure 7-3:
UCF Location Constraints for DCE RS-232 Serial Port
NET "RS232_DTE_RXD" LOC = "U8" | IOSTANDARD = LVTTL ;
NET "RS232_DTE_TXD" LOC = "M13" | IOSTANDARD = LVTTL | DRIVE = 8 | SLEW = SLOW ;
UG257_07_02_060506
NET "RS232_DCE_RXD" LOC = "R7" | IOSTANDARD = LVTTL ;
NET "RS232_DCE_TXD" LOC = "M14" | IOSTANDARD = LVTTL | DRIVE = 8 | SLEW = SLOW ;
UG257_07_03_060506