Configuration Handbook - Kamami.pl

PS ConfigurationnCONFIG low for at least 2 µs to restart configuration. The microprocessoror controller can only transition the nCONFIG pin low if the pin is undersystem control and not tied to V CC .The enhanced configuration devices support parallel configuration of upto eight devices. The n-bit (n = 1, 2, 4, or 8) PS configuration mode allowsenhanced configuration devices to concurrently configure a chain ofFPGAs. These devices do not have to be the same device family ordensity; they can be any combination of Altera FPGAs with differentdesigns. An individual enhanced configuration device DATA pin isavailable for each targeted FPGA. Each DATA line can also feed a chain ofFPGAs. Figure 13–15 shows how to concurrently configure multipledevices using an enhanced configuration device.13–40 Altera CorporationCyclone II Device Handbook, Volume 1 February 2007