Altera Integer Arithmetic IP Bedienungsanleitung PDF herunterladen (Seite 69)

Parameter Name Type Required Description

INPUT_REGISTER_C[0…3] String No Specifies the clock port for the datac[]

operand of the multiplier. Values are

UNREGISTERED, CLOCK0, CLOCK1, and

CLOCK2. If omitted, the default value is

UNREGISTERED. INPUT_REGISTER_C [1 …

3] must have similar values with INPUT_

REGISTER_C [0].

INPUT_ACLR_C[0…3] String No Specifies the asynchronous clear for the

datac[] operand of the multiplier. Values

are NONE, ACLR0, ACLR1. If omitted, the

default value is NONE. The INPUT_ACLR_C [1

… 3] value must be set similar to the value of

INPUT_ACLR_C0.

LOADCONST_VALUE Integer No Preload constant value to complement

accumulator mode. Values are 2^N where 0

< N < 64.

PREADDER_MODE String No Specifies the mode of pre-adder settings to

be used. Values are SIMPLE, COEF, INPUT,

SQUARE, and CONSTANT. The default value is

SIMPLE

PREADDER_DIRECTION_[] String No Parameter [0…3]. Specifies whether the pre-

adder of the corresponding multiplier adds

or subtracts its value from the sum. Values

are ADD and SUB. If omitted, the default value

is ADD.

COEFFSEL[]_REGISTER String No Parameter [0…3]. Specifies the clock source

for the coefficient inputs of the

corresponding multiplier. Values are

UNREGISTERED, CLOCK0, CLOCK1, and

CLOCK2. The value must be set similar to the

value of INPUT_REGISTER_A0 or set as

UNREGISTERED.

COEFFSEL[]_ACLR String No Specifies the asynchronous clear source for

the coefficient inputs to the first multiplier.

Values are NONE, ACLR0 and ACLR1. If

omitted, the default value is NONE. The value

must be set similar to the value of INPUT_

ACLR_A0.

SYSTOLIC_DELAY1 String No Specifies the clock source for the systolic

are UNREGISTERED, CLOCK0, CLOCK1, and

CLOCK2. The value must be set similar to the

value of OUTPUT_REGISTER or set as

UNREGISTERED.

6-16

ALTERA_MULT_ADD Parameters

UG-01063

2014.12.19

Altera Corporation

ALTERA_MULT_ADD (Multiply-Adder)

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