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Altera Integer Arithmetic IP User Manual

Page 125

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Parameter Name

Type

Requi

red

Description

EXTRA_LATENCY

String

No

Specifies the number of clock

cycles of latency.

LPM_HINT

String

No

When you instantiate a library of

parameterized modules (LPM)

function in a VHDL Design File

(.vhd), you must use the

LPM_

HINT

parameter to specify an

Altera-specific parameter. For

example:

LPM_HINT = "CHAIN_

SIZE = 8, ONE_INPUT_IS_

CONSTANT = YES"

The default value is

UNUSED

.

LPM_TYPE

String

No

Identifies the library of

parameterized modules (LPM)

entity name in VHDL design

files.

INTENDED_DEVICE_FAMILY

String

No

This parameter is used for

modeling and behavioral

simulation purposes. Create the

ALTMULT_ADD megafunction

with the MegaWizard Plug-in

Manager to calculate the value for

this parameter.

DSP_BLOCK_BALANCING

String

No

If omitted, the default value is

AUTO

.

DEDICATED_MULTIPLIER_CIRCUITRY

String

No

Specifies whether to use the DSP

block to implement the circuit.

Values are

YES

,

NO

, and

AUTO

. The

circuit is implemented using the

DSP block when the value is set

to YES. If omitted, the default

value is AUTO.

9-24

ALTMULT_ADD Parameters

UG-01063

2014.12.19

Altera Corporation

ALTMULT_ADD (Multiply-Adder)

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