DK-DEV-5SGXEA7/ES Altera, DK-DEV-5SGXEA7/ES Datasheet - Page 129
DK-DEV-5SGXEA7/ES
Manufacturer Part Number
DK-DEV-5SGXEA7/ES
Description
KIT DEV STRATIX V FPGA 5SGXEA7
Manufacturer
Altera
Series
Stratix® Vr
Type
FPGAr
Specifications of DK-DEV-5SGXEA7/ES
Contents
Board
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
For Use With/related Products
Stratix® V 5SGXEA7
Other names
544-2725
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Chapter 3: Variable Precision DSP Blocks in Stratix V Devices
Operational Mode Descriptions
Figure 3–9. One 36 × 18 Independent Multiplier Mode for Stratix V Devices
Figure 3–10. 36-Bit Independent Multiplier Mode with Two Variable Precision DSP Blocks for Stratix V Devices
May 2011 Altera Corporation
dataa_0[35..18]
datab_0[17..0]
dataa_0[17..0]
datab_0[17..0]
36-Bit Multiplier
You can efficiently construct an individual 36-bit multiplier with two adjacent
Stratix V variable precision DSP blocks. The 36 x 36 multiplication consists of four
18 x 18 multipliers, as shown in
applications requiring more than 18-bit precision; for example, for the mantissa
multiplication portion of very high precision fixed-point arithmetic applications.
dataa_0[35..18]
datab_0[35..18]
datab_0[35..18]
dataa_0[35..18]
dataa_0[17..0]
datab_0[17..0]
dataa_0[17..0]
datab_0[17..0]
18
18
18
18
Variable Precision DSP Block
18
18
18
18
18
18
18
18
Variable Precision DSP Block 1
Variable Precision DSP Block 2
Mult_H
Mult_L
x
x
Mult_H
Mult_L
Mult_H
Mult_L
x
x
x
x
x
+/-
Figure
Stratix V Device Handbook Volume 2: Device Interfaces and Integration
Adder
Adder
+
+
3–10. The 36-bit multiplier is useful for
18
54
result[17..0]
result[71..18]
54
result[53..0]
3–13
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