Altera Integer Arithmetic IP Bedienungsanleitung PDF herunterladen (Seite 67)

Parameter Name Type Required Description

SIGNED_ACLR_[] String No Parameter [A, B]. Specifies the asynchro‐

nous clear signal for the first register on the

corresponding sign[] port. 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.

MULTIPLIER_REGISTER[] String No Parameter [0...3]. Specifies the clock source

of the register that follows the corresponding

multiplier. Values are UNREGISTERED,

CLOCK0, CLOCK1 and CLOCK2. If omitted, the

default value is UNREGISTERED.

MULTIPLIER_ACLR[] String No Parameter [0...3]. Specifies the asynchronous

clear signal of the register that follows the

corresponding multiplier. Values are NONE,

ACLR0, and ACLR1. If omitted the default

value is NONE.

MULTIPLIER1_DIRECTION String No Specifies whether the second multiplier adds

or subtracts its value from the sum. Values

are ADD and SUB. If the addnsub1 port is

used, this parameter is ignored. If omitted,

the default value is ADD.

MULTIPLIER3_DIRECTION String No Specifies whether the fourth multiplier adds

or subtracts their results from the total.

Values are ADD and SUB. If the addnsub3 port

is used, this parameter is ignored. If omitted,

the default value is ADD.

ACCUMULATOR String No Specifies the accumulator mode of the final

adder stage. Values are YES and NO. If

omitted, the default value is NO.

ACCUM_DIRECTION String No Specifies whether the accumulator adds or

subtracts its value from the previous sum.

Values are ADD and SUB. If omitted, the

default value is ADD.

OUTPUT_REGISTER String No Specifies the clock signal for the output

CLOCK1 and CLOCK2. If omitted, the default

value is UNREGISTERED.

OUTPUT_ACLR String No Specifies the asynchronous clear signal for

the second adder register. Values are NONE,

ACLR0, and ACLR1. If omitted, the default

value is NONE.

PORT_SIGN[] String No Parameter [A, B]. Specifies the

corresponding sign[a,b] input port usage.

Values are PORT_USED and PORT_UNUSED. If

omitted, the default value is PORT_UNUSED.

6-14

ALTERA_MULT_ADD Parameters

UG-01063

2014.12.19

Altera Corporation

ALTERA_MULT_ADD (Multiply-Adder)

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