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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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STM32H753II датащи(PDF) 202 Page - STMicroelectronics |
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STM32H753II датащи(HTML) 202 Page - STMicroelectronics |
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202 / 361 page  Electrical characteristics (rev Y) STM32H753xI 202/360 DS12117 Rev 8 Figure 60. Ethernet SMI timing diagram Table 114 gives the list of Ethernet MAC signals for the RMII and Figure 61 shows the corresponding timing diagram. Figure 61. Ethernet RMII timing diagram Table 115 gives the list of Ethernet MAC signals for MII and Figure 62 shows the corresponding timing diagram. Table 114. Dynamics characteristics: Ethernet MAC signals for RMII(1) 1. Guaranteed by characterization results. Symbol Parameter Min Typ Max Unit tsu(RXD) Receive data setup time 2 - - ns tih(RXD) Receive data hold time 3 - - tsu(CRS) Carrier sense setup time 2.5 - - tih(CRS) Carrier sense hold time 2 - - td(TXEN) Transmit enable valid delay time 4 4.5 7 td(TXD) Transmit data valid delay time 7 7.5 11.5 MS31384V1 ETH_MDC ETH_MDIO(O) ETH_MDIO(I) tMDC td(MDIO) tsu(MDIO) th(MDIO) ai15667b 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) |
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