Altera Integer Arithmetic IP Manual de usuario descargar pdf (Pagina 122)

Parameter Name Type Requi

red

Description

REPRESENTATION_A String No Specifies the numerical represen‐

tation of the multiplier input A.

Values are UNSIGNED, SIGNED and

VARIABLE. When this parameter

is set to SIGNED, the adder

interprets the multiplier input A

as a signed two's complement

number. When this parameter is

set to UNSIGNED, the adder

interprets the multiplier input A

as an unsigned number. If

omitted, the default value is

UNSIGNED. Use the VARIABLE

setting to access the SIGNED_

REGISTER_A and the SIGNED_

PIPELINE_REGISTER_A

parameter options for the signa

input port.

REPRESENTATIONS_B

String No Specifies the numerical represen‐

tation of the multiplier input B

port. Values are UNSIGNED,

SIGNED, and VARIABLE. When

this parameter is set to UNSIGNED,

the adder interprets the

multiplier input B as an unsigned

number. When this parameter is

set to SIGNED, the adder

interprets the multiplier input B

as a signed two's complement

number. If omitted, the default

value is UNSIGNED. Use the

VARIABLE setting to access the

SIGNED_REGISTER_B and the

SIGNED_PIPELINE_REGISTER_B

parameter options for the signb

input port.

SIGNED_REGISTER_[]

String No Parameter [A,B]. Specifies the

clock signal for the first register

on the corresponding sign[]

port. Values are UNREGISTERED,

CLOCK0, CLOCK1, CLOCK2, and

CLOCK3. If the corresponding

sign[] port value is UNUSED, this

parameter is ignored. If omitted,

the default value is CLOCK0.

UG-01063

2014.12.19

ALTMULT_ADD Parameters

9-21

ALTMULT_ADD (Multiply-Adder)

Altera Corporation

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