Altera Quartus II Scripting - Manual (Page 437)

Chapter 3: Tcl Packages & Commands 3–307
sdc
© July 2013 Altera Corporation Quartus II Scripting Reference Manual
# Apply a simple 2.000 ns source latency to the system clock.
set_clock_latency -source 2.000 [get_clocks SYSCLK]
# Specify feedback clock latencies between output port outclk
# and the output port fdbkclk.
set_clock_latency -source -late -rise 0.800 [get_clocks FDBKCLK]
set_clock_latency -source -late -fall 0.750 [get_clocks FDBKCLK]
set_clock_latency -source -early -rise 0.500 [get_clocks FDBKCLK]
set_clock_latency -source -early -fall 0.460 [get_clocks FDBKCLK]