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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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AM6546 датащи(PDF) 244 Page - Texas Instruments |
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AM6546 датащи(HTML) 244 Page - Texas Instruments |
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244 / 284 page  7.9.5.21.6.3.4 PRU_ICSSG MII_RT Switching Characteristics – MII_TXD[3:0] and MII_TXEN NO. PARAMETER DESCRIPTION MODE MIN MAX UNIT PMIT5 td(TX_CLK-TXD) Delay time, TX_CLK High to TXD[3:0] valid 10 Mbps 0 25 ns td(TX_CLK-TX_EN) Delay time, TX_CLK to TX_EN valid 0 25 ns td(TX_CLK-TXD) Delay time, TX_CLK High to TXD[3:0] valid 100 Mbps 0 25 ns td(TX_CLK-TX_EN) Delay time, TX_CLK to TX_EN valid 0 25 ns PMIT5 MII_TXCLK (input) MII_TXD[3:0], MII_TXEN (outputs) SPRS91x_TIMING_PRU_MII_RT_07 Figure 7-121. PRU_ICSSG MII_TXD[3:0], MII_TXEN Timing For more information, see section Programmable Real-Time Unit Subsystem and Industrial Communication Subsystem - Gigabit (PRU_ICSSG) in the device TRM. 7.9.5.22 Timers For more details about features and additional description information on the device Timers, see the corresponding sections within Section 6.3, Signal Descriptions and Section 8, Detailed Description. Section 7.9.5.22.1, Section 7.9.5.22.2 and Figure 7-122 present timings and switching characteristics of the Timers. 7.9.5.22.1 Timing Requirements for Timers NO. PARAMETER DESCRIPTION MODE MIN MAX UNIT T1 tw(TINPH) Pulse duration, high CAPTURE 5 + 4P(1) ns T2 tw(TINPL) Pulse duration, low CAPTURE 5 + 4P(1) ns (1) P = functional clock period in ns. 7.9.5.22.2 Switching Characteristics for Timers NO. PARAMETER DESCRIPTION MODE MIN MAX UNIT T3 tw(TOUTH) Pulse duration, high PWM -3 + 4P(1) ns T4 tw(TOUTL) Pulse duration, low PWM -3 + 4P(1) ns (1) P = functional clock period in ns. T1 T2 TIMIx TIMER_01 T3 T4 TIMOx Figure 7-122. Timer Timing For more information, see section Timers in the device TRM. AM6548, AM6528, AM6546, AM6526 SPRSP52B – DECEMBER 2019 – REVISED JUNE 2021 www.ti.com 244 Submit Document Feedback Copyright © 2022 Texas Instruments Incorporated Product Folder Links: AM6548 AM6528 AM6546 AM6526 |
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