Altera Floating-Point - Manual (Page 87)

ALTFP_INV_SQRT IP Core
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2014.12.19
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You can use the ports and parameters available to customize the ALTFP_INV_SQRT IP core according to
your application.
ALTFP_INV_SQRT Features
The ALTFP_INV_SQRT IP core offers the following features:
• Inverse square root value of a given input.
• Optional exception handling output ports such as
zero
,
division_by_zero
, and
nan
.
Output Latency
The output latency options for the ALTFP_INV_SQRT megafunction differs depending on the precision
selected, the width of the mantissa, or both.
Table 11-1: Latency Options for Each Precision Format
Precision Mantissa Width Latency (in clock cycles)
Single 23 26
Double 52 36
Single-Extended
31– 39 26
40 – 52 36
ALTFP_INV_SQRT Truth Table
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