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STM32F769AI 数据表(PDF) 193 Page - STMicroelectronics |
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STM32F769AI 数据表(HTML) 193 Page - STMicroelectronics |
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193 / 255 page ![]() DocID029041 Rev 4 193/255 STM32F765xx STM32F767xx STM32F768Ax STM32F769xx Electrical characteristics 224 Figure 57. Ethernet SMI timing diagram Table 97 gives the list of Ethernet MAC signals for the RMII and Figure 58 shows the corresponding timing diagram. Figure 58. Ethernet RMII timing diagram Table 96. Dynamics characteristics: Ethernet MAC signals for SMI(1) 1. Guaranteed by characterization results. Symbol Parameter Min Typ Max Unit tMDC MDC cycle time(2.38 MHz) 400 400 403 ns Td(MDIO) Write data valid time THCLK + 1 THCLK + 1.5 THCLK + 3 tsu(MDIO) Read data setup time 12.5 - - th(MDIO) Read data hold time 0 - - |
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