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AM3892 Datasheet(PDF) 200 Page - Texas Instruments |
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AM3892 Datasheet(HTML) 200 Page - Texas Instruments |
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200 / 299 page ![]() EMAC[1:0]_RXCLK (input) 1 2 EMAC[1:0]_ EMAC[1:0]_ EMAC[1:0]_ EMAC[1:0]_ RXD7− RXD0, RXDV, RXER (inputs) 1 EMAC[1:0]_TXCLK (input) EMAC[1:0]_ EMAC[1:0]_ EMAC[1:0]_ TXD7− TXD0, TXEN (outputs) AM3894 AM3892 SPRS681A – OCTOBER 2010 – REVISED MARCH 2011 www.ti.com Table 8-43. Timing Requirements for EMAC [G]MII Receive 10/100/1000 Mbit/s (see Figure 8-46) 1000 Mbps (1 100/10 Mbps Gbps) NO. UNIT MIN MAX MIN MAX tsu(RXD-RXCLK) Setup time, receive selected signals valid before 1 tsu(RXDV-RXCLK) 2 8 ns EMAC[1:0]_RXCLK tsu(RXER-RXCLK) th(RXCLK-RXD) Hold time, receive selected signals valid after 2 th(RXCLK-RXDV) 0 8 ns EMAC[1:0]_RXCLK th(RXCLK-RXER) Figure 8-46. EMAC Receive Timing Table 8-44. Switching Characteristics Over Recommended Operating Conditions for EMAC [G]MII Transmit 10/100 Mbits/s (see Figure 8-47) 100/10 Mbps NO. PARAMETER UNIT MIN MAX td(TXCLK-TXD) 1 Delay time, EMAC[1:0]_TXCLK to transmit selected signals valid 5 25 ns td(TXCLK-TXEN) Table 8-45. Switching Characteristics Over Recommended Operating Conditions for EMAC [G]MII Transmit 1000 Mbits/s (see Figure 8-47) 1000 Mbps (1 Gbps) NO. PARAMETER UNIT MIN MAX td(GMTCLK-TXD) 1 Delay time, EMAC[1:0]_GMTCLK to transmit selected signals valid 0.5 5 ns td(GMTCLK-TXEN) Figure 8-47. EMAC Transmit Timing 200 Peripheral Information and Timings Copyright © 2010–2011, Texas Instruments Incorporated Submit Documentation Feedback Product Folder Link(s): AM3894 AM3892 |
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