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STR910FAM32X6 数据表(PDF) 60 Page - STMicroelectronics |
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STR910FAM32X6 数据表(HTML) 60 Page - STMicroelectronics |
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60 / 78 page ![]() Electrical characteristics STR91xFA 60/78 Notes: 1 ALE_LENGTH = 1 by default (can be programmed to be 2 by setting the bits In the SCU_SCR0 register) 2 WSTRD = 1Fh by default (RD wait state time = WSTRD x tBCLK, WSTRD can be programmed in the EMI_RCRx Register) 3 WSTOEN = 1 by default (RD assertion delay from chip select. WSTOEN can be programmed in the EMI_OECRx Register) Figure 13. Non-mux bus (8-bit) read timings Figure 14. Mux bus (16-bit) read timings tAAH Address to ALE hold time tBCLK/2 - 1 tBCLK/2 + 1 ns tAAS Address to ALE setup time (ALE_LENGTH) x tBCLK - 1 ns Symbol Parameter Value Unit Min Max EMI_CSxn EMI_A [15:0] A ddress Data EMI_D[7:0] EMI_RDn tRA S tRP tRDH tRA H tRCR tRDS EMI_CSxn EMI_A [23:16] A ddress Data EMI_A D[15:0] EMI_RDn tRA S tRP tRDH tRA H tRCR tRDS EMI_A LE A ddress tA A H tA A S tA W |
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