Intel Agilex User Guide

• Sequential vector dot product
• Exception handling support using exception flags:-
— 8-bit exception flags for 32-bit arithmetic
— 16-bit exception flags for 16-bit arithmetic
• Subnormal values handling
Related Information
Intel Agilex Device Data Sheet—DSP Block Specifications
Refer to the Intel Agilex Device Data Sheet for more information on the DSP block
performance.
1.2. Supported Operational Modes in Intel Agilex Devices
1.2.1. Fixed-Point Arithmetic
Table 1. Supported Combinations of Operational Modes and Features
Variable-
Precision DSP
Block
Resource
Operation Mode Supported
Operation
Instance
Pre-Adder
Support
Coefficient
Support
Input
Cascade
Support
Chainin/
Chainout
Support
1 variable
precision DSP
block
Fixed-point
independent 18 x 19
multiplication
2
(1)
Yes Yes Yes
(2)
No
Fixed-point
independent 27 x 27
multiplication
1 Yes Yes Yes
(3)
Yes
Fixed-point two
18 x 19 multiplier
adder mode
1 Yes Yes Yes
(2)
Yes
Fixed-point 18 x 18
multiplier adder
summed with 36-bit
input
1 No No No Yes
Fixed-point 18 x 19
systolic mode
1 Yes Yes Yes
(2)
Yes
Fixed-point four 9 x 9
multiplier adder mode
1 No No No Yes
2 Variable
precision DSP
blocks
Fixed-point complex
18x19 multiplication
1 No No Yes
(2)
No
(1)
The Intel Quartus
®
Prime software will determine the merging of two independent
multiplication automatically when there are not enough DSP blocks on the device or within a
Logic Lock (Standard) region.
(2)
Each of the two inputs to a pre-adder has a maximum width of 18-bit. When the input cascade
is used to feed one of the pre-adder inputs, the maximum width for the input cascade is
18-bit.
(3)
When you enable the pre-adder feature, the input cascade support is not available.
1. Intel
®
Agilex
™
Variable Precision DSP Blocks Overview
UG-20213 | 2019.04.02
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Intel
®
Agilex
™
Variable Precision DSP Blocks User Guide
5

Intel Agilex Specifications

General

Brand	Intel
Model	Agilex
Category	Microcontrollers
Language	English