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AM5728 Datasheet(PDF) 314 Page - Texas Instruments |
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AM5728 Datasheet(HTML) 314 Page - Texas Instruments |
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314 / 415 page  314 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 7-82. Manual Functions Mapping for GMAC RMII1 (continued) BALL BALL NAME GMAC_RMII1_MANUAL1 CFG REGISTER MUXMODE A_DELAY (ps) G_DELAY (ps) 0 2 W9 rgmii0_txc 300 1200 CFG_RGMII0_TXC_IN rmii1_rxd1 Y1 uart3_txd 300 500 CFG_UART3_TXD_IN rmii1_rxer V2 uart3_rxd 400 700 CFG_UART3_RXD_IN rmii1_crs 7.22.4 GMAC RGMII 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 7-83, Table 7-84 and Figure 7-58 present timing requirements for receive RGMIIn operation. Table 7-83. Timing Requirements for rgmiin_rxc - RGMIIn Operation NO. PARAMETER DESCRIPTION SPEED MIN MAX UNIT 1 tc(RXC) Cycle time, rgmiin_rxc 10 Mbps 360 440 ns 100 Mbps 36 44 ns 1000 Mbps 7.2 8.8 ns 2 tw(RXCH) Pulse duration, rgmiin_rxc high 10 Mbps 160 240 ns 100 Mbps 16 24 ns 1000 Mbps 3.6 4.4 ns 3 tw(RXCL) Pulse duration, rgmiin_rxc low 10 Mbps 160 240 ns 100 Mbps 16 24 ns 1000 Mbps 3.6 4.4 ns 4 tt(RXC) Transition time, rgmiin_rxc 10 Mbps 0.75 ns 100 Mbps 0.75 ns 1000 Mbps 0.75 ns Table 7-84. Timing Requirements for GMAC RGMIIn Input Receive for 10/100/1000 Mbps (1) NO. PARAMETER DESCRIPTION MIN MAX UNIT 5 tsu(RXD-RXCH) Setup time, receive selected signals valid before rgmiin_rxc high/low 1 ns 6 th(RXCH-RXD) Hold time, receive selected signals valid after rgmiin_rxc high/low 1 ns |
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