Altera Quartus II Scripting Manuel d'utilisateur télécharger pdf (Page 65)

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Chapter 2: Command-line Executables 2–39

quartus_fit

--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)

1 2 ... 60 61 62 63 64 65 66 67 68 69 70 ... 633 634

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Altera Quartus II Scripting Manuel d'utilisateur Page 65

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