Altera Floating-Point Manual do Utilizador Página 101

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Table 13-4: ALTFP_ATAN Parameters
Parameter
Name
Type Required Description
WIDTH_EXP Integer Yes Specifies the precision of the exponent. The bias of the
exponent is always set to 2(WIDTH_EXP-1) -1 (that is, 127 for
single-precision format). The value of WIDTH_EXP must be 8
for single-precision format. The default value for WIDTH_
EXP is 8.
WIDTH_MAN Integer Yes Specifies the precision of the mantissa. The value of WIDTH_
MAN must be 23 when WIDTH_EXP is 8. The default value for
WIDTH_MAN is 23.
PIPELINE Integer Yes The number of pipeline is fixed for the mantissa width and
some internal parameter. For the correct settings, refer to
Table 12–1 on page 12–2.
ROUNDING Integer No Specifies the rounding mode. The default value is TO_
NEAREST. Other rounding modes are not supported.
UG-01058
2014.12.19
ALTFP_ATAN Parameters
13-3
ALTFP_ATAN IP Core
Altera Corporation
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