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SPEAR320S-2 датащи(PDF) 86 Page - STMicroelectronics |
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SPEAR320S-2 датащи(HTML) 86 Page - STMicroelectronics |
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86 / 113 page ![]() Timing requirements SPEAr320S 86/113 Doc ID 022508 Rev 2 5.7.2 MII receive timing characteristics Figure 18. MII RX waveform 5.7.3 MDC/MDIO timing characteristics Figure 19. MDC waveform Table 60. MII RX timing requirements Symbol Description Min Max Unit tCK MII#_TXCLK clock period 40 40 ns tS Setup time requirement for MII receive data 12.5 tH Hold time requirement for MII receive data -2 MII#_RXCLK tS tH tCK MII#_RXD0-MII#_RXD3 MII#_RXER, MII#_RXDV Table 61. MDC timing requirements Symbol Description Min Max Unit tCK MDC clock period 614.4 614.4 ns tD Falling edge of MDC to MDIO output delay -2.4 0.64 tS Setup time requirement for MDIO input 9.6 tH Hold time requirement for MDIO input -6.6 TD MDC tCK tH tS MDIO(INPUT) MDIO (OUTPUT) |
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