EP4CE30F29C7N Datasheet, PDF (165/488 Pages) Altera Corporation – Cyclone IV Device Handbook, Volume 1

May 2013
CYIV-51008-1.7
CYIV-51008-1.7
8. Configuration and Remote System
Upgrades in Cyclone IV Devices
This chapter describes the configuration and remote system upgrades in Cyclone^® IV
devices. Cyclone IV (Cyclone IV GX and Cyclone IV E) devices use SRAM cells to
store configuration data. You must download the configuration data to Cyclone IV
devices each time the device powers up because SRAM memory is volatile.
Cyclone IV devices are configured using one of the following configuration schemes:
■ Active serial (AS)
■ Active parallel (AP) (supported in Cyclone IV E devices only)
■ Passive serial (PS)
■ Fast passive parallel (FPP) (not supported in EP4CGX15, EP4CGX22, and
EP4CGX30 [except for the F484 package] devices)
■ JTAG
Cyclone IV devices offer the following configuration features:
■ Configuration data decompression (“Configuration Data Decompression” on
page 8–2)
■ Remote system upgrade (“Remote System Upgrade” on page 8–69)
System designers face difficult challenges, such as shortened design cycles, evolving
standards, and system deployments in remote locations. Cyclone IV devices help
overcome these challenges with inherent re-programmability and dedicated circuitry
to perform remote system upgrades. Remote system upgrades help deliver feature
enhancements and bug fixes without costly recalls, reduced time-to-market, and
extended product life.
Configuration
This section describes Cyclone IV device configuration and includes the following
topics:
■ “Configuration Features” on page 8–2
■ “Configuration Requirement” on page 8–3
■ “Configuration Process” on page 8–6
■ “Configuration Scheme” on page 8–8
■ “AS Configuration (Serial Configuration Devices)” on page 8–10
■ “AP Configuration (Supported Flash Memories)” on page 8–21
■ “PS Configuration” on page 8–32
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Cyclone IV Device Handbook,
Volume 1
May 2013
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