Configuration Handbook - Kamami.pl

Configuring Stratix & Stratix GX DevicesFigure 11–4. Configuring Multiple Stratix & Stratix GX Devices with A Single Configuration Device Note (1)V CC (2)V CC (2) V CC (2)V CCGNDStratix or Stratix GX Device 2 Stratix or Stratix GX Device 1MSEL2MSEL1MSEL0DCLKDATA0nSTATUSCONF_DONEnCONFIG10 kΩ (3) 10 kΩV CCGNDMSEL2MSEL1MSEL0DCLKDATA0nSTATUSCONF_DONEnCONFIGConfigurationDevice (4)DCLKDATAOEnCS nCASCnINIT_CONF (5)N.C.nCEOnCEnCEOnCEGNDNotes to Figure 11–4:(1) When performing multi-device active serial configuration, you must generate the configuration device programmerobject file (.pof) from each project’s SOF. You can combine multiple SOFs using the Quartus II software through theDevice & Pin Option dialog box. For more information on how to create configuration and programming files, seethe Software Settings section in the Configuration Handbook, Volume 2.(2) The pull-up resistor should be connected to the same supply voltage as the configuration device.(3) The enhanced configuration devices and EPC2 devices have internal programmable pull-ups on OE and nCS. Youshould only use the internal pull-ups of the configuration device if the nSTATUS and CONF_DONE signals are pulledup to 3.3 V or 2.5 V (not 1.8 V or 1.5 V). If external pull-ups are used, they should be 10 kΩ.(4) EPC16, EPC8, and EPC4 configuration devices cannot be cascaded.(5) The nINIT_CONF pin is available on EPC16, EPC8, EPC4, and EPC2 devices. If nINIT_CONF is not used, nCONFIGmust be pulled to V CC through a resistor. The nINIT_CONF pin has an internal pull-up resistor that is always activein EPC16, EPC8, EPC4, and EPC2 devices. These devices do not need an external pull-up resistor on thenINIT_CONF pin.Altera Corporation 11–13July 2005 Stratix Device Handbook, Volume 2