Configuration Handbook - Kamami.pl

Configuring Stratix & Stratix GX DevicesDuring configuration and initialization, and before the device enters usermode, the microprocessor must not drive the CONF_DONE signal low.1 If the optional CLKUSR pin is used and nCONFIG is pulled lowto restart configuration during device initialization, you need toensure CLKUSR continues toggling during the time nSTATUS islow (maximum of 40 µs).Figure 11–8 shows the circuit for PS configuration with a microprocessor.Figure 11–8. PS Configuration Circuit with MicroprocessorMemoryADDRDATA0V CCV CCV CC10 kΩ 10 kΩStratix DeviceMSEL2CONF_DONEnSTATUSMSEL1MSEL0MicroprocessorGNDnCEnCEOGNDN.C.DATA0nCONFIGDCLKPS Configuration TimingFigure 11–9 shows the PS configuration timing waveform for Stratix andStratix GX devices. Table 11–8 shows the PS timing parameters for Stratixand Stratix GX devices.Altera Corporation 11–19July 2005 Stratix Device Handbook, Volume 2