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전자부품 데이터시트 검색엔진 |
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전자부품 데이터시트 검색엔진 |
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STM32F479AI 데이터시트(PDF) 150 Page - STMicroelectronics |
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STM32F479AI 데이터시트(HTML) 150 Page - STMicroelectronics |
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150 / 208 page  Electrical characteristics STM32F479xx 150/208 DocID028010 Rev 2 Figure 49. Ethernet SMI timing diagram Table 75 gives the list of Ethernet MAC signals for the RMII and Figure 50 shows the corresponding timing diagram. Figure 50. Ethernet RMII timing diagram Table 74. Dynamics characteristics: Ethernet MAC signals for SMI(1) 1. Guaranteed based on test during characterization. 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 THCLK + 1.5 tsu(MDIO) Read data setup time 12.5 - - th(MDIO) Read data hold time 0 - - RMII_REF_CLK RMII_TX_EN RMII_TXD[1:0] RMII_RXD[1:0] RMII_CRS_DV td(TXEN) td(TXD) tsu(RXD) tsu(CRS) tih(RXD) tih(CRS) ai15667 |
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