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DP83848MPHPREP データシート(PDF) 36 Page - Texas Instruments |
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DP83848MPHPREP データシート(HTML) 36 Page - Texas Instruments |
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36 / 92 page  X1 25 MHz_OUT T2.29.2 T2.29.1 T2.29.1 Clear bit 10 of BMCR (return to normal operation from Isolate mode) Hardware or Software Reset (with PHYAD 00000) ¹ MODE T2.28.1 T2.28.2 ISOLATE NORMAL DP83848-EP SLLSEC6D – SEPTEMBER 2012 – REVISED JUNE 2013 www.ti.com 3.5.28 Isolation Timing Figure 3-29. Isolation Timing xxx PARAMETER DESCRIPTION NOTES MIN TYP MAX UNIT T2.28.1 From software clear of bit 10 in the 100 µs BMCR register to the transition from Isolate to Normal Mode T2.28.2 From Deassertion of S/W or H/W Reset 500 µs to transition from Isolate to Normal mode 3.5.29 25 MHz_OUT Timing Figure 3-30. 25 MHz_OUT Timing xxx PARAMETER DESCRIPTION NOTES(1) MIN TYP MAX UNIT MII mode 20 T2.29.1 25 MHz_OUT High/Low Time ns RMII mode 10 T2.29.2 25 MHz_OUT propagation delay Relative to X1 8 ns (1) 25 MHz_OUT characteristics are dependent upon the X1 input characteristics. 36 ELECTRICAL SPECIFICATIONS Copyright © 2012–2013, Texas Instruments Incorporated Submit Documentation Feedback Product Folder Links: DP83848-EP |
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