EP3C80F484C6N EP3C80F484C6N EP3SL50F780C4N EP4CE10F17I7N EP4CE55F23I7N EP4CE6F17C9LN EP4CE75U19I7N Programmable Logic

EP3C80F484C6N EP3C80F484C6N EP3SL50F780C4N EP4CE10F17I7N EP4CE55F23I7N EP4CE6F17C9LN EP4CE75U19I7N Programmable Logic

Configuration

Cyclone III device family uses SRAM cells to store configuration data. Configuration data is downloaded to Cyclone III device family each time the device powers up. Low-cost configuration options include the Altera EPCS family serial flash devices as well as commodity parallel flash configuration options. These options provide the flexibility for general-purpose applications and the ability to meet specific configuration and wake-up time requirements of the applications. Cyclone III device family supports the AS, PS, FPP, and JTAG configuration schemes. The AP configuration scheme is only supported in Cyclone III devices.

f For more information about configuration, refer to the Configuration, Design Security, and Remote System Upgrades in the Cyclone III Device Family chapter.

Remote System Upgrades

Cyclone III device family offers remote system upgrade without an external controller. The remote system upgrade capability in Cyclone III device family allows system upgrades from a remote location. Soft logic (either the Nios II embedded processor or user logic) implemented in Cyclone III device family can download a new configuration image from a remote location, store it in configuration memory, and direct the dedicated remote system upgrade circuitry to start a reconfiguration cycle. The dedicated circuitry performs error detection during and after the configuration process, and can recover from an error condition by reverting to a safe configuration image. The dedicated circuitry also provides error status information. Cyclone III devices support remote system upgrade in the AS and AP configuration scheme. Cyclone III LS devices support remote system upgrade in the AS configuration scheme only.

f For more information, refer to the Configuration, Design Security, and Remote System Upgrades in the Cyclone III Device Family chapter.

Design Security (Cyclone III LS Devices Only)

Cyclone III LS devices offer design security features which play a vital role in the large and critical designs in the competitive military and commercial environments. Equipped with the configuration bit stream encryption and anti-tamper features, Cyclone III LS devices protect your designs from copying, reverse engineering and tampering. The configuration security of Cyclone III LS devices uses AES with 256-bit security key.