參數(shù)資料
型號: lpm-abs
廠商: Altera Corporation
英文描述: Parameteruzed Absolute Value(參數(shù)確定的絕對值器件)
中文描述: Parameteruzed絕對值(參數(shù)確定的絕對值器件)
文件頁數(shù): 29/48頁
文件大小: 293K
代理商: LPM-ABS
24
Altera Corporation
Arithmetic Functions
Parameters
Note:
(1)
The
LATENCY
parameter is provided only for backwards-compatibility with MAX+PLUS II pre-version 7.0 designs.
For all new designs, you should use the
LPM_PIPELINE
parameter instead.
Name
Required
Value
Description
INPUT_A_IS_CONSTANT
No
"YES"
"NO"
If
dataa[]
is connected to a constant value, setting the value
of
INPUT_A_IS_CONSTANT
to
"YES"
optimizes the multiplier
for resource usage and speed. The default value is
"NO"
.
If
datab[]
is connected to a constant value, setting the value
of
INPUT_B_IS_CONSTANT
to
"YES"
optimizes the multiplier
for resource usage and speed. The default value is
"NO"
.
Specifies the number of clock cycles of latency associated with
the
result[]
output. The default value of zero (
0
) indicates
that no latency exists, and that a purely combinatorial function
will be instantiated. The default value is 0 (non-pipelined).
Type of multiplication performed. The default value is
"UNSIGNED"
.
Width of the
dataa[]
port.
Width of the
datab[]
port.
Width of the
result[]
port. The default is
LPM_WIDTHA+LPM_WIDTHB
.
Width of the
sum[]
port. If the
sum[]
port is not used,
LPM_WIDTHS
must be set to a value between 1 and
LPM_WIDTHP
, inclusive. The default value is
LPM_WIDTHA
.
Same as
LPM_PIPELINE
.
INPUT_B_IS_CONSTANT
No
"YES"
"NO"
LPM_PIPELINE
No
Integer
0
LPM_REPRESENTATION
No
"SIGNED"
"UNSIGNED"
Integer > 0
Integer > 0
Integer > 0
LPM_WIDTHA
Yes
Yes
Yes
LPM_WIDTHB
LPM_WIDTHP
LPM_WIDTHS
No
Integer > 0
LATENCY
,
Note (1)
No
Integer
0
相關PDF資料
PDF描述
lpm-add-sub Parameteruzed Adder/Subtractor(參數(shù)確定的加法器/減法器)
lpm-and Parameterized AND Gate(參數(shù)確定的與門)
lpm-constant Parameterized Constant Generator(參數(shù)確定的常量發(fā)生器)
lpm-decode Parameterized Decoder(參數(shù)確定的解碼器)
lpm-counter Parameteruzed Absolute Value(參數(shù)確定的計數(shù)器)
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