Configuration Handbook - Kamami.pl

Configuring Stratix III DevicesFigure 11–19. Multiple-Device PS Configuration When Both devices Receive the Same DataADDRMemoryDATA0V CC (1)V CC (1)10 kΩ 10 kΩStratix III DeviceStratix III DeviceExternal Host(MAX II Device orMicroprocessor)GNDCONF_DONEnSTATUSnCEnCEOMSEL2DATA0nCONFIG MSEL1DCLK MSEL0N.C. (2)V CCGNDCONF_DONEnSTATUS nCEOnCEDATA0nCONFIGDCLKMSEL2MSEL1MSEL0N.C. (2)V CCGNDGNDNotes to Figure 11–19:(1) You should connect the pull-up resistor to a supply that provides an acceptable input signal for all devices in thechain. V CC should be high enough to meet the V IH specification of the I/O on the device and the external host.(2) The nCEO pins of both devices are left unconnected when configuring the same configuration data into multipledevices.You can use a single configuration chain to configure Stratix III deviceswith other Altera devices. To ensure that all devices in the chain completeconfiguration at the same time, or that an error flagged by one deviceinitiates reconfiguration in all devices, all of the device CONF_DONE andnSTATUS pins must be tied together.fFor more information on configuring multiple Altera devices in the sameconfiguration chain, refer to the Configuring Mixed Altera device Chainschapter in the Configuration Handbook.PS Configuration TimingFigure 11–20 shows the timing waveform for PS configuration whenusing a MAX II device as an external host.Altera Corporation 11–47May 2007 Stratix III Device Handbook, Volume 1