Motor de Búsqueda de Datasheet de Componentes Electrónicos
  Spanish  ▼
ALLDATASHEET.ES

X  

LSH32 Datasheet(PDF) 5 Page - LOGIC Devices Incorporated

No. de pieza LSH32
Descripción Electrónicos  32-bit Cascadable Barrel Shifter
Download  9 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Fabricante Electrónico  LODEV [LOGIC Devices Incorporated]
Página de inicio  http://www.logicdevices.com
Logo LODEV - LOGIC Devices Incorporated

LSH32 Datasheet(HTML) 5 Page - LOGIC Devices Incorporated

  LSH32 Datasheet HTML 1Page - LOGIC Devices Incorporated LSH32 Datasheet HTML 2Page - LOGIC Devices Incorporated LSH32 Datasheet HTML 3Page - LOGIC Devices Incorporated LSH32 Datasheet HTML 4Page - LOGIC Devices Incorporated LSH32 Datasheet HTML 5Page - LOGIC Devices Incorporated LSH32 Datasheet HTML 6Page - LOGIC Devices Incorporated LSH32 Datasheet HTML 7Page - LOGIC Devices Incorporated LSH32 Datasheet HTML 8Page - LOGIC Devices Incorporated LSH32 Datasheet HTML 9Page - LOGIC Devices Incorporated  
Zoom Inzoom in Zoom Outzoom out
 5 / 9 page
background image
DEVICES INCORPORATED
LSH32
32-bit Cascadable Barrel Shifter
Special Arithmetic Functions
08/16/2000–LDS.32-Q
5
tially the LSH32s are arranged in
multiple rows or banks such that the
inputs to successive rows are left-
shifted by 16 positions. The outputs
of each row are multiplexed onto a
three-state bus. The normalization
problem then reduces to selecting
from among the several banks that
one which has the first non-zero bit
of the input value among its 16 most
significant positions. If the most
significant one in the input file was
within the upper 16 locations of a
given bank, the SO4 output of the
most significant slice in that bank will
be low. Single clock normalization
can thus be accomplished simply by
enabling onto the three-state output
bus the highest priority bank in which
this condition is met. In this way the
input word will be normalized
regardless of the number of shift
positions required to accomplish this.
The number of shift positions can be
determined simply by concatenation
of the SO3–SO0 outputs of the most
significant slice in the selected row
with the encoded Output Enable-bits
determining the row number. Note
that lower rows need not be fully
populated. This is because they
represent left shifts in multiples of 16
positions, and the lower bits of the
output word will be zero filled. In
order to accomplish this zero fill, the
least significant device in each row is
always enabled, and the row select is
instead connected to the SI4 input.
This will force the shift length of the
least significant device to a value
greater than 15 whenever the row
containing that device is not selected.
This results in zero fill being accom-
plished by the equivalently positioned
slice in a higher bank, as shown in the
diagram.
BLOCK FLOATING POINT
With a small amount of external logic,
block floating point operations are
easily accomplished by the LSH32.
Data resulting from a vector operation
are applied to the LSH32 with the
NORM-input deasserted. The SO4
SO0 outputs fill then represent the
normalization shift distance for each
vector element in turn. By use of an
external latch and comparator, the
maximum shift distance encountered
across all elements in the vector is
saved for use in the next block opera-
tion (or block normalization). During
this subsequent pass through the data,
the shift code saved from the previous
pass is applied uniformly across all
elements of the vector. Since the
LSH32 is not used in the internal
normalize mode, this operation can be
pipelined, thereby obtaining the
desired shift distance for the next pass
while simultaneously applying the
normalization required from the
previous pass.


Número de pieza similar - LSH32

Fabricante ElectrónicoNo. de piezaDatasheetDescripción Electrónicos
logo
Micro Commercial Compon...
LSH3 MCC-LSH3 Datasheet
390Kb / 5P
   500 mW Zener Diode 1.9 to 37.2 Volts
LSH30 MCC-LSH30 Datasheet
390Kb / 5P
   500 mW Zener Diode 1.9 to 37.2 Volts
logo
Rohm
LSH3004-AA10A ROHM-LSH3004-AA10A Datasheet
156Kb / 4P
   Multi Line Sensor Heads for narrow-width scanners
LSH3004-AA10A ROHM-LSH3004-AA10A Datasheet
898Kb / 4P
   Contact Image Sensor Heads for narrow-width scanners
LSH3004-AA10A ROHM-LSH3004-AA10A_11 Datasheet
898Kb / 4P
   Contact Image Sensor Heads for narrow-width scanners
More results

Descripción similar - LSH32

Fabricante ElectrónicoNo. de piezaDatasheetDescripción Electrónicos
logo
LOGIC Devices Incorpora...
LSH33 LODEV-LSH33 Datasheet
218Kb / 8P
   32-bit Barrel Shifter with Registers
logo
Mitel Networks Corporat...
PDSP1601 MITEL-PDSP1601_96 Datasheet
171Kb / 18P
   ALU and Barrel Shifter
logo
Zarlink Semiconductor I...
PDSP1601 ZARLINK-PDSP1601_98 Datasheet
121Kb / 16P
   ALU and Barrel Shifter
PDSP1601MC ZARLINK-PDSP1601MC Datasheet
111Kb / 16P
   ALU and Barrel Shifter
logo
Mitel Networks Corporat...
PDSP1601 MITEL-PDSP1601 Datasheet
137Kb / 17P
   ALU and Barrel Shifter
PDSP1601MC MITEL-PDSP1601MC Datasheet
142Kb / 18P
   ALU and Barrel Shifter
logo
Pasternack Enterprises,...
PE82P5003 PASTERNACK-PE82P5003 Datasheet
366Kb / 3P
   8 Bit Programmable Phase Shifter, 32 GHz to 37 GHz
logo
NXP Semiconductors
74F350 PHILIPS-74F350 Datasheet
64Kb / 6P
   4-bit shifter
March 20, 1989
logo
Merrimac Industries, In...
PTM-64A-10B MERRIMAC-PTM-64A-10B Datasheet
177Kb / 1P
   6-Bit DIGITAL PHASE SHIFTER
PTM-84B-100B MERRIMAC-PTM-84B-100B Datasheet
125Kb / 2P
   8-BIT DIGITAL PHASE SHIFTER
More results


Html Pages

1 2 3 4 5 6 7 8 9


Datasheet Descarga

Go To PDF Page


Enlace URL




Política de Privacidad
ALLDATASHEET.ES
¿ALLDATASHEET es útil para Ud.?  [ DONATE ] 

Todo acerca de Alldatasheet   |   Publicidad   |   Contáctenos   |   Política de Privacidad   |   Intercambio de Enlaces   |   Lista de Fabricantes
All Rights Reserved©Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn
Indian : Alldatasheet.in  |   Mexican : Alldatasheet.com.mx  |   British : Alldatasheet.co.uk  |   New Zealand : Alldatasheet.co.nz
Family Site : ic2ic.com  |   icmetro.com