10.1.36.3 Subtractor Parameter Description

The following table describes all the parameters of a subtractor.

Table 10-146. Parameter Description
ParameterFamilyValueFunction
WIDTHAProASICPLUS2–128Word length of DataA, DataB and Sum
Axcelerator2–156
All others2–32
MAXFANOUT500K, PA0Automatic choice
2–16Manual setting of Max. Fanout
CI_POLARITYALL0 1 2Carry-in polarity (active low, active high and not used)
CO_POLARITYALL0 1 2Carry-out polarity (active low, active high,and not used)
Note: The Brent-Kung Subtractor extends the ranges from 32 to 128 bit for SX and SX-A.