Configuration Handbook - Kamami.pl

7. Configuring Stratix II &Stratix II GX DevicesSII52007-4.4IntroductionStratix ® II and Stratix II GX devices use SRAM cells to store configurationdata. Because SRAM memory is volatile, configuration data must bedownloaded to Stratix II and Stratix II GX devices each time the devicepowers up. Stratix II and Stratix II GX devices can be configured usingone of five configuration schemes: the fast passive parallel (FPP), activeserial (AS), passive serial (PS), passive parallel asynchronous (PPA), andJoint Test Action Group (JTAG) configuration schemes. All configurationschemes use either an external controller (for example, a MAX ® II deviceor microprocessor) or a configuration device.Configuration DevicesThe Altera enhanced configuration devices (EPC16, EPC8, and EPC4)support a single-device configuration solution for high-density devicesand can be used in the FPP and PS configuration schemes. They areISP-capable through its JTAG interface. The enhanced configurationdevices are divided into two major blocks, the controller and the flashmemory.1 For information on enhanced configuration devices, refer to theEnhanced Configuration Devices (EPC4, EPC8 & EPC16) Data Sheetand the Using Altera Enhanced Configuration Devices chapters involume 2 of the Configuration Handbook.The Altera serial configuration devices (EPCS64, EPCS16, and EPCS4)support a single-device configuration solution for Stratix II andStratix II GX devices and are used in the AS configuration scheme. Serialconfiguration devices offer a low cost, low pin count configurationsolution.1 For information on serial configuration devices, refer to theSerial Configuration Devices (EPCS1, EPCS4, EPCS16 & EPCS64)Data Sheet chapter in volume 2 of the Configuration Handbook.The EPC2 configuration devices provide configuration support for the PSconfiguration scheme. The EPC2 device is ISP-capable through its JTAGinterface. The EPC2 device can be cascaded to hold large configurationfiles.Altera Corporation 7–1May 2007