Altera Quartus II Scripting - Manual (Page 65)

Chapter 2: Command-line Executables 2–39
quartus_fit
© July 2013 Altera Corporation Quartus II Scripting Reference Manual
--tpd=<time unit>
Option to specify the tpd time value.
Tpd is the maximum acceptable input to non-registered output delay, that is, the time required for a signal
from an input pin to propagate through combinatorial logic and appear at an output pin.
Example usage:
quartus_fit one_wire --tpd=20.55ns
The format is "<floating point time value><time unit>". In this example, "20.55" is the <floating point time
value> and "ns" is the <time unit>.
The following table displays possible time units:
--tsu=<time unit>
Option to specify the tsu time value.
Tsu is the maximum acceptable clock setup time for the input (data) pin. The setup time is the length of
time for which data that feeds a register via its data or enable input(s) must be present at an input pin
before the clock signal that clocks the register is asserted at the clock pin.
Example usage:
quartus_fit one_wire --tsu=7.55ns
The format is "<floating point time value><time unit>". In this example, "7.55" is the <floating point time
value> and "ns" is the <time unit>.
The following table displays possible time units:
Time Unit Description
s second(s)
ms millisecond(s)
us microsecond(s)
ns nanosecond(s)
ps picosecond(s)
fs femtosecond(s)
hz hertz
khz kilohertz
mhz megahertz
ghz gigahertz
Time Unit Description
s second(s)
ms millisecond(s)
us microsecond(s)
ns nanosecond(s)
ps picosecond(s)