DINT2FP Integer-to-Floating-Point Pipelined Converter
Features
- Fully complies with the IEEE 754 specification
- Double-word integer input numbers (up to 4 bytes)
- Single-precision real output numbers
- Simple interface
- No programming required
- Two levels of pipelining
- Full accuracy and precision
- Results available at every clock
- Fully configurable
- Fully synthesizable, static synchronous design with no internal tri-states
Description
The DINT2FP megafunction is a pipelined integer-to-floating-point converter. The input and output number format complies with the IEEE 754 specification. The function supports double-word integers (up to 4 bytes) and single-precision real numbers. The convert operation is pipelined to 2 levels, and the input data is fed in every clock cycle. The first result appears after two clock periods of latency, and subsequent results are available at each clock cycle. The DINT2FP megafunction offers full accuracy and precision.
Block Diagram
Figure 1 shows the block diagram for the DINT2FP megafunction.
Figure 1. Block Diagram for the DINT2FP Megafunction
Device Utilization Example
Table 1 lists the typical device utilization results for the megafunction.
| Table 1. Typical Device Utilization for the Megafunction |
| Device |
Speed Grade |
Utilization |
Parameter Setting |
| Logic Cells |
Performance
(fMAX) |
| FLEX® EPF10K100E |
-1 |
930 |
45 MHz |
Contact Digital Core Design |
| APEXTM EP20K100E |
-1 |
856 |
48 MHz |
Contact Digital Core Design |
| ACEX® EP1K100E |
-1 |
930 |
48 MHz |
Contact Digital Core Design |
Contact Information
For additional information, contact Digital Core Design at:
Digital Core Design
Wroclawska 94
41-902 Bytom
Poland
Tel. +48 32 282 82 66
Fax +48 32 282 74 37
E-mail: info@dcd.com.pl
URL: www.dcd.com.pl
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