Altera Integer Arithmetic IP - Manual (Page 129)

Parameter Name Type Requi
red
Description
CHAINOUT_ROUNDING
String No
Enables rounding handling at the
chainout stage. Values are
YES
,
NO
, and
VARIABLE
. A value of
YES
or
NO
specifies saturation
handling setting permanently to
on or off. A value of
VARIABLE
allows dynamically controlled
saturation handling.
If the value of
CHAINOUT_
ROUNDING
is
YES
, the symmetric
saturation at the second adder
output stage is not allowed. If
omitted, the default value is
NO
.
CHAINOUT_ROUND_REGISTER
String No Specifies the clock source for the
first register on the
chainout_
round
input. Values are
UNREGISTERED
,
CLOCK0
,
CLOCK1
,
CLOCK2
, and
CLOCK3
. If omitted,
the default value is
CLOCK0
.
CHAINOUT_ROUND_ACLR
String No Specifies the asynchronous clear
source for the first register on the
chainout_round
input. Values
are
ACLR0
,
ACLR1
,
ACLR2
, and
ACLR3
. If omitted and
CHAINOUT_
ROUND_REGISTER
is used, the
default value is
ACLR3
.
CHAINOUT_ROUND_PIPELINE_REGISTER
String No Specifies the clock source for the
second register on the
chainout_
round
input. Values are
UNREGISTERED
,
CLOCK0
,
CLOCK1
,
CLOCK2
, and
CLOCK3
. If omitted,
the default value is
CLOCK0
.
CHAINOUT_ROUND_PIPELINE_ACLR
String No Specifies the asynchronous clear
source for the second register on
the
chainout_round
input.
Values are
ACLR0
,
ACLR1
,
ACLR2
,
and
ACLR3
. If omitted and
CHAINOUT_ROUND_ PIPELINE_
REGISTER
is used, the default
value is
ACLR3
.
CHAINOUT_ROUND_OUTPUT_REGISTER
String No Specifies the clock source for the
third register on the
chainout_
round
input. Values are
UNREGISTERED
,
CLOCK0
,
CLOCK1
,
CLOCK2
, and
CLOCK3
. If omitted,
the default value is
CLOCK0
.
9-28 ALTMULT_ADD Parameters
UG-01063
2014.12.19
Altera Corporation ALTMULT_ADD (Multiply-Adder)
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