Fast Passive Parallel Multi-Device Configuration - Altera Cyclone V Device Handbook

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Fast Passive Parallel Multi-Device Configuration

You can configure multiple Cyclone V devices that are connected in a chain.

Pin Connections and Guidelines

Observe the following pin connections and guidelines for this configuration setup:

Tie the following pins of all devices in the chain together:

By tying the

time. If any device in the chain detects an error, configuration stops for the entire chain and you must

reconfigure all the devices. For example, if the first device in the chain flags an error on the

it resets the chain by pulling its

skew problems.

All devices in the chain must use the same data width.

If you are configuring the devices in the chain using the same configuration data, the devices must be of

the same package and density.

Using Multiple Configuration Data

To configure multiple Cyclone V devices in a chain using multiple configuration data, connect the devices

to an external host as shown in the following figure.

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are buffered for every fourth device to prevent signal integrity and clock

Configuration, Design Security, and Remote System Upgrades in Cyclone V Devices

pins together, the devices initialize and enter user mode at the same

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