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STM32H757AI 数据表(PDF) 163 Page - STMicroelectronics |
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STM32H757AI 数据表(HTML) 163 Page - STMicroelectronics |
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163 / 251 page  DS12931 Rev 1 163/251 STM32H757xI Electrical characteristics 230 Refer to Section 6.3.18: I/O port characteristics for more details on the input/output alternate function characteristics. Asynchronous waveforms and timings Figure 29 through Figure 31 represent asynchronous waveforms and Table 78 through Table 85 provide the corresponding timings. The results shown in these tables are obtained with the following FMC configuration: • AddressSetupTime = 0x1 • AddressHoldTime = 0x1 • DataSetupTime = 0x1 (except for asynchronous NWAIT mode , DataSetupTime = 0x5) • BusTurnAroundDuration = 0x0 • Capacitive load CL = 30 pF In all timing tables, the TKERCK is the fmc_ker_ck clock period. Figure 29. Asynchronous non-multiplexed SRAM/PSRAM/NOR read waveforms 1. Mode 2/B, C and D only. In Mode 1, FMC_NADV is not used. Data FMC_NE FMC_NBL[1:0] FMC_D[15:0] tv(BL_NE) t h(Data_NE) FMC_NOE Address FMC_A[25:0] tv(A_NE) FMC_NWE tsu(Data_NE) tw(NE) MS32753V1 w(NOE) t tv(NOE_NE) t h(NE_NOE) th(Data_NOE) t h(A_NOE) t h(BL_NOE) tsu(Data_NOE) FMC_NADV (1) t v(NADV_NE) tw(NADV) FMC_NWAIT tsu(NWAIT_NE) th(NE_NWAIT) |
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