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STM32F479AI 数据表(PDF) 151 Page - STMicroelectronics |
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STM32F479AI 数据表(HTML) 151 Page - STMicroelectronics |
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151 / 208 page  DocID028010 Rev 2 151/208 STM32F479xx Electrical characteristics 187 Table 76 gives the list of Ethernet MAC signals for MII and Figure 50 shows the corresponding timing diagram. Figure 51. Ethernet MII timing diagram Table 75. Dynamics characteristics: Ethernet MAC signals for RMII(1) 1. Guaranteed based on test during characterization. Symbol Parameter Min Typ Max Unit tsu(RXD) Receive data setup time 2.5 - - ns tih(RXD) Receive data hold time 2.0 - - tsu(CRS) Carrier sense setup time 0.5 - - tih(CRS) Carrier sense hold time 1.5 - - td(TXEN) Transmit enable valid delay time 5.5 6.5 11 td(TXD) Transmit data valid delay time 6.0 6.5 11 Table 76. Dynamics characteristics: Ethernet MAC signals for MII(1) 1. Guaranteed based on test during characterization. Symbol Parameter Min Typ Max Unit tsu(RXD) Receive data setup time 1 - - ns tih(RXD) Receive data hold time 3 - - tsu(DV) Data valid setup time 0 - - tih(DV) Data valid hold time 2.5 - - tsu(ER) Error setup time 0 - - tih(ER) Error hold time 2 - - td(TXEN) Transmit enable valid delay time 0 7 13 td(TXD) Transmit data valid delay time 0 7 13 MII_RX_CLK MII_RXD[3:0] MII_RX_DV MII_RX_ER td(TXEN) td(TXD) tsu(RXD) tsu(ER) tsu(DV) tih(RXD) tih(ER) tih(DV) ai15668 MII_TX_CLK MII_TX_EN MII_TXD[3:0] |
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