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SPEAR320 датащи(PDF) 56 Page - STMicroelectronics |
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SPEAR320 датащи(HTML) 56 Page - STMicroelectronics |
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56 / 73 page ![]() Timing requirements SPEAr320 56/73 Doc ID 16755 Rev 5 Figure 12. Output address signal waveforms for NAND Flash Figure 13. In/out data address signal waveforms for NAND Flash Note: Values in Table 36 are referred to the common internal source clock which has a period of tHCLK = 6 ns. Table 36. Timing characteristics for NAND Flash Parameter Min Max tCLE -3.9 2.8 tALE -4.2 2.6 tWE (programmable by the Tset bits in the FSMC registers) (((Tset+1) * tHCLK ) - 3 ns) (((Tset+1) * tHCLK) + 3 ns) tRE (programmable by the Tset bits in the FSMC registers) (((Tset+1) * tHCLK ) - 3 ns) (((Tset+1) * tHCLK) + 3 ns) tIO (programmable by the Thiz bits in the FSMC registers) (((Thiz +1) * tHCLK) - 3 ns) (((Thiz +1) * tHCLK )+ 3 ns) tREAD (programmable by the Twait bits in the FSMC registers) ((Twait+1)* tHCLK FSMC_ADDR_LE FSMC_CSx FSMC_WE FSMC_Dx Address tALE tWE tIO FSMC_CSx FSMC_WE FSMC_Dx (out) Data Out tIO FSMC_Dx (in) FSMC_RE tRE -> IO tWE tRE tREAD tNFIO -> FFs |
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