Altera Integer Arithmetic IP User Manual
Page 119
Parameter Name
Type
Requi
red
Description
INPUT_SOURCE_A0
String
No
Specifies the data source to the
first multiplier. Values are
DATAA
and
SCANA
. If this parameter is set
to
DATAA
, the adder uses the
values from the
dataa[]
port. If
this parameter is set to
SCANA
, the
adder uses values from the scan
chain. If omitted, the default
value is
DATAA
. For Stratix II
devices, a value of
VARIABLE
is
available for the adder to perform
rounding and saturation on the
data source before feeding the
result to the multiplier.
INPUT_SOURCE_A1
String
No
Specifies the data source to the
second multiplier. Values are
DATAA
and
SCANA
. If this
parameter is set to
DATAA
, the
adder uses the values from the
dataa[]
port. If this parameter is
set to
SCANA
, the adder uses
values from the scan chain. If
omitted, the default value is
DATAA
. For Stratix II devices, a
value of
VARIABLE
is available for
the adder to perform rounding
and saturation on the data source
before feeding the result to the
multiplier.
INPUT_SOURCE_A2
String
No
Specifies the data source to the
third multiplier. Values are
DATAA
and
SCANA
. If this parameter is set
to
DATAA
, the adder uses the
values from the
dataa[]
port. If
this parameter is set to
SCANA
, the
adder uses values from the scan
chain. If omitted, the default
value is
DATAA
. For Stratix II
devices, a value of
VARIABLE
is
available for the adder to perform
rounding and saturation on the
data source before feeding the
result to the multiplier.
9-18
ALTMULT_ADD Parameters
UG-01063
2014.12.19
Altera Corporation
ALTMULT_ADD (Multiply-Adder)