Configuration Handbook - Kamami.pl

Configuration SchemesPPA Configuration TimingFigure 11–18 shows the Stratix and Stratix GX device timing waveformsfor PPA configuration.Figure 11–18. PPA Timing Waveforms for Stratix & Stratix GX Devicest CFGt STATUSnCONFIGnSTATUS (1)CONF_DONE (2)DATA[7..0]t CF2ST1t DSUt CSSUByte 0 Byte 1Byte n Ð 1Byte nCS (3)nCS (3)nWS (3)RDYnBSY (3)t CSSU(4)t t CF2WSDH(4)t WSPt CSH(4)t RDY2WS(4)t WS2Bt BUSYt CF2ST0t CF2CD t CD2UMUser I/OsINIT_DONEHigh-Z(4)Notes to Figure 11–18:(1) Upon power-up, nSTATUS is held low for the time of the POR delay.(2) Upon power-up, before and during configuration, CONF_DONE is low.(3) After configuration, the state of CS, nCS, nWS, and RDYnBSY depends on the design programmed into the Stratix orStratix GX device.(4) Device I/O pins are in user mode.11–34 Altera CorporationStratix Device Handbook, Volume 2 July 2005