default.sdc

来自「LEON3 SOC GRlip IP core. Memory controll」· SDC 代码 · 共 64 行

# Synplicity, Inc. constraint file
# /home/jiri/ibm/vhdl/grlib/designs/leon3-avnet-eval-xc4vlx25/default.sdc
# Written on Sun Oct  1 16:16:08 2006
# by Synplify Pro, Synplify Pro 8.6.1 Scope Editor

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# Collections
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# Clocks
#
#define_clock            -name {clk_100mhz}  -freq 120.000 -clockgroup default_clkgroup
define_clock            -name {etx_clk}  -freq 25.000 -clockgroup phy_rx_clkgroup -route 10.000
define_clock            -name {erx_clk}  -freq 25.000 -clockgroup phy_tx_clkgroup -route 10.000

define_clock            -name {leon3mp|ddrsp0.ddrc.ddr_phy0.clk} -freq 100.000 -route 1.0 -clockgroup ddr_clkgroup
define_clock            -name {leon3mp|clkgen0.clkin}  -freq 100.000 -route 1.0 -clockgroup ahb_clkgroup
define_clock            -name {ddr_clk_fb} -freq 125.000 -clockgroup ddr_read_group

#
# Clock to Clock
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#define_clock_delay           -rise {clk_100mhz} -fall {clk_100mhz} -false

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# Inputs/Outputs
#
define_output_delay -disable     -default  10.00 -improve 0.00 -route 0.00 -ref {clk:r}
define_input_delay -disable      -default  10.00 -improve 0.00 -route 0.00 -ref {clk:r}

#
# Registers
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# Multicycle Path
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# False Path
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# Path Delay
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# Attributes
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define_global_attribute          syn_useioff {1}

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# I/O standards
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# Compile Points
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# Other Constraints
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