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SPC56EC74L7 데이터시트(PDF) 94 Page - STMicroelectronics |
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SPC56EC74L7 데이터시트(HTML) 94 Page - STMicroelectronics |
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94 / 118 page ![]() Electrical Characteristics SPC564Bxx - SPC56ECxx 94/118 Doc ID 17478 Rev 4 4.18.4 MII Serial Management Channel Timing (MDIO and MDC) The FEC functions correctly with a maximum MDC frequency of 2.5 MHz. Figure 24. MII serial management channel timing diagram Table 48. MII serial management channel timing(1) Spec Characteristic Min Max Unit M10 MDC falling edge to MDIO output invalid (minimum propagation delay) 0— ns M11 MDC falling edge to MDIO output valid (max prop delay) —25 ns M12 MDIO (input) to MDC rising edge setup 28 — ns M13 MDIO (input) to MDC rising edge hold 0— ns M14 MDC pulse width high 40% 60% MDC period M15 MDC pulse width low 40% 60% MDC period 1. Output pads configured with SRE = 0b11. M11 MDC (output) MDIO (output) M12 M13 MDIO (input) M10 M14 M15 |
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