entity ShiftElement

A bidirectional shiftregister-component.

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Used Packages

ieee.std_logic_1164 all
EXEMPLAR.EXEMPLAR_1164 all

Generics

WIDTH positive := 1

Ports

clock in std_logic
sclr in std_logic
enable in std_logic := '1'
select_left in std_logic
in_left in std_logic_vector(WIDTH-1 downto 0) := (others => '0')
in_right in std_logic_vector(WIDTH-1 downto 0) := (others => '0')
q out std_logic_vector(WIDTH-1 downto 0)

Architectures

ShiftElement_arch1

Detailed Description

The ShiftElement can be used to build up a bidirectional shiftregister for words with a fixed width (like it is. done in the CandidateBucket). At an input the shift-direction is specified selecting from which input data is loaded into the shiftelement.

Generics:

WIDTH

determines the width of the data words.

Ports:

select_left	determines which input is loaded at the next clock into the ShiftElement (if enabled).
in_left	is the data input from the "left" side.
in_right	is the data input from the "right" side.
q	is the output of the ShiftElement.

See also: CandidateBucket

Version: $Revision: 1.3 $
Date: $Date: 2000/10/12 11:38:27 $
Author: Christoph Schwick
Generated: schwick@dsy-srv2 on Wed Oct 18 15:23:21 200.