Configuration Handbook - Kamami.pl

Device Configuration PinsTable 11–15. Dedicated Configuration Pins on the Stratix or Stratix GX Device (Part 6 of 8)Pin NameUser ModeConfigurationSchemeDATA[7..1] I/O Parallelconfigurationschemes(FPP andPPA)Pin TypeInputsDescriptionData inputs. Byte-wide configuration data ispresented to the target device onDATA[7..0]. The V IH and V IL levels forthese pins are dependent on the V CCIO of theI/O banks that they reside in.In serial configuration schemes, they functionas user I/Os during configuration, which meansthey are tri-stated.After PPA or FPP configuration, DATA[7..1]are available as a user I/Os and the state ofthese pin depends on the Dual-Purpose Pinsettings.DATA7 I/O PPA Bidirectional In the PPA configuration scheme, the DATA7pin presents the RDYnBSY signal after the nRSsignal has been strobed low. The V IL and V ILlevels for this pin are dependent on the V CCIOof the I/O bank that it resides in.In serial configuration schemes, it functions asa user I/O during configuration, which means itis tri-stated.After PPA configuration, DATA7 is available asa user I/O and the state of this pin depends onthe Dual-Purpose Pin settings.nWS I/O PPA Input Write strobe input. A low-to-high transitioncauses the device to latch a byte of data on theDATA[7..0] pins.In non-PPA schemes, it functions as a user I/Oduring configuration, which means it is tristated.After PPA configuration, nWS is available as auser I/O and the state of this pin depends onthe Dual-Purpose Pin settings.11–56 Altera CorporationStratix Device Handbook, Volume 2 July 2005