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AM5728 Datasheet(PDF) 310 Page - Texas Instruments |
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AM5728 Datasheet(HTML) 310 Page - Texas Instruments |
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310 / 415 page ![]() 310 AM5729, AM5728, AM5726 SPRS953F – DECEMBER 2015 – REVISED MAY 2019 www.ti.com Submit Documentation Feedback Product Folder Links: AM5729 AM5728 AM5726 Timing Requirements and Switching Characteristics Copyright © 2015–2019, Texas Instruments Incorporated Table 7-72. GMAC MII IOSETs (continued) SIGNALS IOSET5 IOSET6 BALL MUX BALL MUX mii0_txd2 V4 3 mii0_txd1 Y2 3 mii0_txd0 W2 3 mii0_rxd3 W9 3 mii0_rxd2 V9 3 mii0_rxd1 V6 3 mii0_rxd0 U6 3 mii0_txclk U5 3 mii0_txer U4 3 mii0_rxer U7 3 mii0_rxdv V2 3 mii0_crs V7 3 mii0_col V1 3 mii0_rxclk Y1 3 mii0_txen V3 3 7.22.2 GMAC MDIO Interface Timings CAUTION The IO Timings provided in this section are only valid for some GMAC usage modes when the corresponding Virtual IO Timings or Manual IO Timings are configured as described in the tables found in this section. Table 7-73, Table 7-73 and Figure 7-55 present timing requirements for MDIO. Table 7-73. Timing Requirements for MDIO Input No PARAMETER DESCRIPTION MIN MAX UNIT MDIO1 tc(MDC) Cycle time, MDC 400 ns MDIO2 tw(MDCH) Pulse Duration, MDC High 160 ns MDIO3 tw(MDCL) Pulse Duration, MDC Low 160 ns MDIO4 tsu(MDIO-MDC) Setup time, MDIO valid before MDC High 90 ns MDIO5 th(MDIO_MDC) Hold time, MDIO valid from MDC High 0 ns Table 7-74. Switching Characteristics Over Recommended Operating Conditions for MDIO Output NO PARAMETER DESCRIPTION MIN MAX UNIT MDIO6 tt(MDC) Transition time, MDC 5 ns MDIO7 td(MDC-MDIO) Delay time, MDC low to MDIO valid -150 150 ns |
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