Configuration Handbook - Kamami.pl

Configuration FeaturesUse the data in Table 11–2 to estimate the file size before designcompilation. Different configuration file formats, such as a hexidecimal(.hex) or tabular text file (.ttf) format, will have different file sizes. Referto Quartus ® II software for the different types of configuration file and thefile sizes. However, for any specific version of the Quartus II software,any design targeted for the same device will have the sameuncompressed configuration file size. If you are using compression, thefile size can vary after each compilation because the compression ratio isdependent on the design.fFor more information on setting device configuration options or creatingconfiguration files, refer to the Software Settings chapter in volume 2 ofthe Configuration Handbook.ConfigurationFeaturesStratix III devices offer design security, decompression, and remotesystem upgrade features. Design security using configuration bitstreamencryption is available in Stratix III devices, which protects your designs.Stratix III devices can receive a compressed configuration bitstream anddecompress this data in real-time, reducing storage requirements andconfiguration time. You can make real-time system upgrades from remotelocations of your Stratix III designs with the remote system upgradefeature.Table 11–3 summarizes which configuration features you can use in eachconfiguration scheme.Table 11–3. Stratix III Configuration Features (Part 1 of 2)ConfigurationSchemeFPPConfiguration MethodMAX II device or a Microprocessor withflash memoryDecompression Design SecurityRemote SystemUpgrade√(1) √(1) —Enhanced configuration device (4) √(2) — —Fast AS Serial configuration device (5) √ √ √(3)PSMAX II device or a Microprocessor withflash memory√ √ —Enhanced configuration device (4) √ √ —Download cable √ √ —11–4 Altera CorporationStratix III Device Handbook, Volume 1 May 2007