Altera Integer Arithmetic IP Bedienungsanleitung PDF herunterladen (Seite 154)

Parameters

The following table lists the parameters for the PARALLEL_ADD megafunction.

Table 12-4: PARALLEL_ADD Megafunction Parameters

Parameter Name Type Required Description

WIDTH Integer Yes Specifies the width of the data[] input port.

SIZE Integer Yes Specifies the number of inputs to add.

WIDTHR Integer Yes Specifies the width of the result[] output

port.

SHIFT Integer Yes Specifies the relative shift of the data vectors.

NEW_SUBTRACT String No Specifies whether to add or subtract the most

significant input word bit. Values are NO or

YES. If omitted, the default value is NO.

REPRESENTATION String No Specifies whether the input is signed or

unsigned. Values are UNSIGNED or SIGNED. If

omitted, the default value is UNSIGNED.

PIPELINE Integer No Specifies the value, in clock cycles, of the

output latency.

RESULT_ALIGNMENT String No Specifies the alignment of the result port.

Values are MSB or LSB. If omitted, the default

value is LSB.

INTENDED_DEVICE_FAMILY String No This parameter is used for modeling and

behavioral simulation purposes. Create the

ALTCDR_RX megafunction with the

MegaWizard Plug-In Manager to calculate the

value for this parameter.

LPM_HINT String No

When you instantiate a library of parameter‐

ized 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.

Design Example: Shift Accumulator

12-4

Parameters

UG-01063

2014.12.19

Altera Corporation

PARALLEL_ADD (Parallel Adder)

Send Feedback

1 2 ... 149 150 151 152 153 154 155 156 157

Kommentare zu diesen Handbüchern

Keine Kommentare

Altera Integer Arithmetic IP Bedienungsanleitung Seite 154

Kommentare zu diesen Handbüchern

Verwandte Produkte und Handbücher für Messgeräte Altera Integer Arithmetic IP