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V62/12615-01XE-R Datasheet(PDF) 26 Page - Texas Instruments |
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V62/12615-01XE-R Datasheet(HTML) 26 Page - Texas Instruments |
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26 / 92 page ![]() RX_CLK RXD[3:0] RX_DV Valid data T2.12.2 T2.12.3 T2.12.1 T2.12.1 TX_CLK TXD[3:0] TX_EN Valid data T2.11.1 T2.11.1 T2.11.2 T211.3 DP83848-EP SLLSEC6D – SEPTEMBER 2012 – REVISED JUNE 2013 www.ti.com 3.5.11 10 Mb/s MII Transmit Timing Figure 3-12. 10 Mb/s MII Transmit Timing xxx PARAMETER DESCRIPTION NOTES(1) MIN TYP MAX UNIT T2.11.1 TX_CLK High/Low Time 10 Mb/s MII mode 190 200 210 ns T2.11.2 TXD[3:0], TX_EN Data Setup to 10 Mb/s MII mode 24.70 ns TX_CLK fall T2.11.3 TXD[3:0], TX_EN Data Hold from 10 Mb/s MII mode 0 ns TX_CLK rise (1) An attached Mac should drive the transmit signals using the positive edge of TX_CLK. As shown above, the MII signals are sampled on the falling edge of TX_CLK. 3.5.12 10 Mb/s MII Receive Timing Figure 3-13. 10 Mb/s MII Receive Timing xxx PARAMETER DESCRIPTION NOTES(1) MIN TYP MAX UNIT T2.12.1 RX_CLK High/Low Time 160 200 240 ns T2.12.2 RX_CLK to RXD[3:0], RX_DV 10 Mb/s MII mode 100 ns Delay T2.12.3 RX_CLK rising edge delay from 10 Mb/s MII mode 100 ns RXD[3:0], RX_DV Valid (1) RX_CLK may be held low for a longer period of time during transition between reference and recovered clocks. Minimum high and low times will not be violated. 26 ELECTRICAL SPECIFICATIONS Copyright © 2012–2013, Texas Instruments Incorporated Submit Documentation Feedback Product Folder Links: DP83848-EP |
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