
Parameter Name Type Required Description
SIGN_PIPELINE_REG_[] String No Parameter [A,B]. Specifies
the clock signal for the
second register on the
corresponding sign[] port.
Values are UNREGISTERED,
CLOCK0, CLOCK1, CLOCK2, and
CLOCK3. If omitted, the
default value is CLOCK0. This
parameter is ignored if the
corresponding sign[] port is
unused.
SIGN_REG_[] String No Parameter [A,B]. Specifies
the clock signal for the first
register on the corresponding
sign[] port. Values are
UNREGISTERED, CLOCK0,
CLOCK1, CLOCK2, and CLOCK3.
If omitted, the default value is
CLOCK0. This parameter is
ignored if the corresponding
sign[] port is unused.
WIDTH_A Integer Yes Specifies the width of the
dataa[] port.
WIDTH_B Integer Yes Specifies the width of the
datab[] port.
WIDTH_RESULT Integer No Specifies the width of the
result[] port.
Table 8-6: ALTMULT_ACCUM Megafunction Parameters (Stratix II, Stratix II GX, Stratix III, Stratix IV, Arria
GX, and HardCopy devices only)
Parameter Name Type Required Description
MULTIPLIER_SATURATION String No Specifies multiplier
saturation. Values are NO,
YES, and VARIABLE. If
omitted the default value is
NO.
8-12
ALTMULT_ACCUM Parameters
UG-01063
2014.12.19
Altera Corporation
ALTMULT_ACCUM (Multiply-Accumulate)
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