Altera Integer Arithmetic IP Manuale Utente Scaricare il pdf (Pagina 6)

Integer Arithmetic Megafunctions

2014.12.19

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You can use Altera

integer megafunction IP cores to perform mathematical operations in your design.

These functions offer more efficient logic synthesis and device implementation than coding your own

functions. You can customize the IP cores to accommodate your design requirements.

Altera integer arithmetic megafunctions are divided into the following two categories:

• Library of parameterized modules (LPM) IP cores

• Altera-specific (ALT) IP cores

The following table lists the integer arithmetic IP cores.

Table 1-1: List of IP Cores

IP Cores Function Overview

LPM Megafunctions

LPM_COUNTER (Counter) Counter

LPM_DIVIDE (Divider) Divider

LPM_MULT (Multiplier) Multiplier

Altera-specific (ALT) Megafunctions

ALTECC ECC Encoder/Decoder

ALTERA_MULT_ADD (Multiply-Adder) Multiplier-Adder

ALTMEMMULT (Memory-based Constant

Coefficient Multiplier)

Memory-based Constant Coefficient Multiplier

ALTMULT_ACCUM (Multiply-Accumulate) Multiplier-Accumulator

ALTERA_MULT_ADD (Multiply-Adder) Multiplier-Adder

ALTMULT_COMPLEX (Complex Multiplier) Complex Multiplier

ALTSQRT (Integer Square Root) Integer Square-Root

PARALLEL_ADD (Parallel Adder) Parallel Adder

If you are unfamiliar with IP cores, refer to the Introduction to IP Cores User Guide.

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of its semiconductor products to current specifications in accordance with Altera's standard warranty, but reserves the right to make changes to any

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