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TDA2SA Datasheet(PDF) 294 Page - Texas Instruments |
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TDA2SA Datasheet(HTML) 294 Page - Texas Instruments |
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294 / 427 page  294 TDA2SX, TDA2SG, TDA2SA TDA2HG, TDA2HV, TDA2HF, TDA2LF SPRS951F – DECEMBER 2015 – REVISED MAY 2019 www.ti.com Submit Documentation Feedback Product Folder Links: TDA2SX TDA2SG TDA2SA TDA2HG TDA2HV TDA2HF TDA2LF Timing Requirements and Switching Characteristics Copyright © 2015–2019, Texas Instruments Incorporated Manual IO Timings Modes must be used to ensure some IO timings for GMAC. See Table 7-2 Modes Summary for a list of IO timings requiring the use of Manual IO Timings Modes. See Table 7-80 Manual Functions Mapping for GMAC RMII0 for a definition of the Manual modes. Table 7-80 lists the A_DELAY and G_DELAY values needed to calculate the correct values to be set in the CFG_x registers. Table 7-80. Manual Functions Mapping for GMAC RMII0 BALL BALL NAME GMAC_RMII0_MANUAL1 CFG REGISTER MUXMODE A_DELAY (ps) G_DELAY (ps) 0 1 U3 RMII_MHZ_50_CLK 0 0 CFG_RMII_MHZ_50_CLK_IN RMII_MHZ_50_CLK U6 rgmii0_txd0 500 500 CFG_RGMII0_TXD0_IN rmii0_rxd0 V6 rgmii0_txd1 840 1000 CFG_RGMII0_TXD1_IN rmii0_rxd1 U7 rgmii0_txd2 360 840 CFG_RGMII0_TXD2_IN rmii0_rxer V7 rgmii0_txd3 600 1000 CFG_RGMII0_TXD3_IN rmii0_crs Manual IO Timings Modes must be used to ensure some IO timings for GMAC. See Table 7-2 Modes Summary for a list of IO timings requiring the use of Manual IO Timings Modes. See Table 7-81 Manual Functions Mapping for GMAC RMII1 for a definition of the Manual modes. Table 7-81 list the A_DELAY and G_DELAY values needed to calculate the correct values to be set in the CFG_x registers. Table 7-81. Manual Functions Mapping for GMAC RMII1 BALL BALL NAME GMAC_RMII1_MANUAL1 CFG REGISTER MUXMODE A_DELAY (ps) G_DELAY (ps) 0 2 U3 RMII_MHZ_50_CLK 0 0 CFG_RMII_MHZ_50_CLK_IN RMII_MHZ_50_CLK V9 rgmii0_txctl 300 1000 CFG_RGMII0_TXCTL_IN rmii1_rxd0 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 7.21.4 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 7-82, Table 7-83 and Figure 7-52 present timing requirements for receive RGMIIn operation. Table 7-82. 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 |
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