Configuration Handbook - Kamami.pl

Configuring Stratix II & Stratix II GX DevicesTable 7–22. Dedicated Configuration Pins on the Stratix II & Stratix II GX Device (Part 6 of 10)nCEO N/A All Output Output that drives low when deviceconfiguration is complete. In single deviceconfiguration, this pin is left floating. Inmulti-device configuration, this pin feeds thenext device’s nCE pin. The nCEO of the lastdevice in the chain is left floating. The nCEOpin is powered by V CCIO in I/O bank 7. Forrecommendations on how to connect nCEO ina chain with multiple voltages across thedevices in the chain, refer to the Stratix IIArchitecture chapter in volume 1 of theStratix II Handbook or the Stratix II GXArchitecture chapter in volume 1 of theStratix II GX Device Handbook.ASDOPin NameUser ModeN/A in ASmode I/O innon-ASmodeConfigurationSchemePin TypeDescriptionAS Output Control signal from the Stratix II orStratix II GX device to the serial configurationdevice in AS mode used to read outconfiguration data.nCSON/A in ASmode I/O innon-ASmodeIn AS mode, ASDO has an internal pull-upresistor that is always active.AS Output Output control signal from the Stratix II orStratix II GX device to the serial configurationdevice in AS mode that enables theconfiguration device.In AS mode, nCSO has an internal pull-upresistor that is always active.Altera Corporation 7–99May 2007 Stratix II Device Handbook, Volume 2