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Motore di ricerca datesheet componenti elettronici |
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Motore di ricerca datesheet componenti elettronici |
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TNETX3150 Scheda tecnica(PDF) 103 Page - Texas Instruments |
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TNETX3150 Scheda tecnica(HTML) 103 Page - Texas Instruments |
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103 / 113 page  TNETX3150/TNETX3150A ThunderSWITCH™ 15-PORT 10-/100-MBIT/S ETHERNET™ SWITCH SPWS027F – FEBRUARY 1997 – REVISED SEPTEMBER 1997 103 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 timing requirements over recommended operating conditions (see Figure 44) MII receive 100/200 Mbit/s (XX = ports 00–02) NO TNETX3150 TNETX3150A UNIT NO. MIN MAX MIN MAX UNIT 1 tsu(MXXRXD)1 Setup time, MXXRXD3–MXXRXD0 valid before MXXRCLK ↑ 8 8 ns 1† tsu(MXXRXD)2 Setup time, MXXRXD7–MXXRXD0 valid before MXXRCLK ↑ 8 8 ns 1 tsu(MXXRXDV) Setup time, MXXRXDV valid before MXXRCLK ↑ 8 8 ns 1† tsu(MXXRXDVX) Setup time, MXXRXDVX valid before MXXRCLK ↑ 8 8 ns 1 tsu(MXXRXER) Setup time, MXXRXER valid before MXXRCLK ↑ 8 8 ns 2 th(MXXRXD)1 Hold time, MXXRXD3–MXXRXD0 valid after MXXRCLK ↑ 8 8 ns 2† th(MXXRXD)2 Hold time, MXXRXD7–MXXRXD0 valid after MXXRCLK ↑ 8 8 ns 2 th(MXXRXDV) Hold time, MXXRXDV valid after MXXRCLK ↑ 8 8 ns 2† th(MXXRXDVX) Hold time, MXXRXDVX valid after MXXRCLK ↑ 8 8 ns 2 th(MXXRXER) Hold time, MXXRXER valid after MXXRCLK ↑ 8 8 ns † Also applies to the uplink (port 00) when operating in the 200-Mbit/s mode, except that MXXRXD3–MXXRXD0 is replaced with MXXRXD7–MXXRXD0 and MXXRXDVX is used. MXXRXD3–MXXRXD0 is driven by the PHY on the falling edge of MXXRCLK. MXXRXD3–MXXRXD0 timing must be met during clock periods when MXXRXDV is asserted. MXXRXDV is asserted and deasserted by the PHY on the falling edge of MXXRCLK. MXXRXER is driven by the PHY on the falling edge of MXXRCLK (XX = ports 00–02). MXXRCLK (input) MXXRXD7–MXXRXD0 MXXRXD3–MXXRXD0 MXXRXDV MXXRXDVX MXXRXER (inputs) 1 2 Figure 44. Ports (00–02) Receive Interface Timing |
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