Altera Floating-Point Manual do Utilizador descarregar pdf (Página 129)

Function Description

Comparisons

Min

Max

Less than (or equal)

Greater than (or equal)

(Not) Equal

Exp/Log/Pow

Power

Exponential (Base 2, 10, e)

Log (Base 2, 10, e)

Log (1+x)

LDExp

Trigonometry

Sin

Cos

Tan

Arcsin

Arccos

Arctan

ALTERA_FP_FUNCTIONS Output Latency

If you require a specific latency, follow these steps:

1. In the ALTERA_FP_FUNCTIONS parameter editor, click the Basic tab.

2. Under the Performance category, in the Goal option, select latency.

3. In the Target field, set your desired latency (cycles).

4. Then, click Check Performance.

ALTERA_FP_FUNCTIONS Target Frequency

If you require a specific frequency, follow these steps:

1. In the ALTERA_FP_FUNCTIONS parameter editor, click Basic tab.

2. Under the Performance category, in the Goal option, select frequency.

3. In the Target field, set your desired frequency (MHz).

4. The IP core reports the latency for the instance that it will generate in the Report category.

Note:

You must verify the frequency by running the TimeQuest Timing Analyzer.

ALTERA_FP_FUNCTIONS Combined Target

If you require a combined target of latency and frequency, follow these steps:

18-2

ALTERA_FP_FUNCTIONS Output Latency

UG-01058

2014.12.19

Altera Corporation

ALTERA_FP_FUNCTIONS IP Core

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