URL
https://opencores.org/ocsvn/w11/w11/trunk
Subversion Repositories w11
[/] [w11/] [tags/] [w11a_V0.74/] [rtl/] [bplib/] [nxcramlib/] [tb/] [tbd_nx_cram_memctl_as.ucf] - Rev 37
Go to most recent revision | Compare with Previous | Blame | View Log
## $Id: tbd_nx_cram_memctl_as.ucf 433 2011-11-27 22:04:39Z mueller $
##
## drive strength defs and timing defs for tbd_nx_cram_memctl_as test target
##
## Revision History:
## Date Rev Version Comment
## 2011-11-26 433 1.1 renamed from tbd_n2_cram_memctl_as.ucf
## 2010-05-30 297 1.0 Initial version
##
## Note: default is DRIVE=12 | SLEW=SLOW
##
## The OFFSET rules are compatible with the setup and c2out times
## used in the test bench tb_nx_cram_memctl.
##
NET "CLK" TNM_NET = "CLK";
TIMESPEC "TS_CLK" = PERIOD "CLK" 20 ns HIGH 50 %;
OFFSET = IN 7.5 ns BEFORE "CLK";
OFFSET = OUT 12.0 ns AFTER "CLK";
##
NET "O_MEM_WE_N" OFFSET = OUT 12.0 ns AFTER "CLK" FALLING;
##
## -- define defaults
##
INST "/" IOSTANDARD=LVCMOS33;
##
## CRAM ----------------------------------------------------------------------
NET "O_MEM_CE_N" IOSTANDARD=LVCMOS33 | DRIVE=12 | SLEW=FAST;
NET "O_MEM_WE_N" IOSTANDARD=LVCMOS33 | DRIVE=12 | SLEW=FAST;
NET "O_MEM_OE_N" IOSTANDARD=LVCMOS33 | DRIVE=12 | SLEW=FAST;
##
NET "O_MEM_BE_N<*>" IOSTANDARD=LVCMOS33 | DRIVE=12 | SLEW=FAST;
##
NET "O_MEM_ADV_N" IOSTANDARD=LVCMOS33 | DRIVE=12 | SLEW=FAST;
NET "O_MEM_CLK" IOSTANDARD=LVCMOS33 | DRIVE=12 | SLEW=FAST;
NET "O_MEM_CRE" IOSTANDARD=LVCMOS33 | DRIVE=12 | SLEW=FAST;
NET "I_MEM_WAIT" IOSTANDARD=LVCMOS33 | PULLDOWN;
##
NET "O_MEM_ADDR<*>" IOSTANDARD=LVCMOS33 | DRIVE=6 | SLEW=FAST;
NET "IO_MEM_DATA<*>" IOSTANDARD=LVCMOS33 | DRIVE=6 | SLEW=SLOW | KEEPER;
##
Go to most recent revision | Compare with Previous | Blame | View Log