Intel® Arria® 10 Core Fabric and General Purpose I/Os Handbook

ID 683461
Date 1/21/2022
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7.3.5. Estimating Configuration Time

The configuration time is mostly the time it takes to transfer the configuration data from a CFI flash memory or an EPCQ-L device to the Intel® Arria® 10 device.

Use the following equations to estimate the configuration time:

AS Configuration

By default, the AS x1 mode is used. The Intel® Arria® 10 device determines the AS mode by reading the option bit in the programming file.

  • AS x1 mode

    Estimated minimum configuration time= .rbf size x (minimum DCLK period / 1 bit per DCLK cycle)

  • AS x4 mode

    Estimated minimum configuration time = .rbf size x (minimum DCLK period / 4 bits per DCLK cycle)

PS Configuration

Estimated minimum configuration time = .rbf size x (minimum DCLK period / 1 bit per DCLK cycle)

FPP Configuration

Estimated minimum configuration time = .rbf size/FPP data width x r x minimum DCLK period

where r is the DCLK-to-DATA[] ratio.

Note: Compressing the configuration data decreases the configuration time. The amount of time increased varies depending on the configuration method and corresponding DCLK ratio.