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AM3351 Datasheet(PDF) 230 Page - Texas Instruments |
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AM3351 Datasheet(HTML) 230 Page - Texas Instruments |
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230 / 252 page ![]() 3 2 Start Bit Data Bits UART_TXD 5 Data Bits Bit Start 4 UART_RXD 1 MII_TXCLK (input) MII_TXD[3:0], MII_TXEN (outputs) 230 AM3359, AM3358, AM3357, AM3356, AM3354, AM3352, AM3351 SPRS717J – OCTOBER 2011 – REVISED APRIL 2016 www.ti.com Submit Documentation Feedback Product Folder Links: AM3359 AM3358 AM3357 AM3356 AM3354 AM3352 AM3351 Peripheral Information and Timings Copyright © 2011–2016, Texas Instruments Incorporated Table 7-110. PRU-ICSS MII_RT Switching Characteristics - MII_TXD[3:0] and MII_TXEN (see Figure 7-112) NO . 10 Mbps 100 Mbps UNIT MIN TYP MAX MIN TYP MAX 1 td(TX_CLK-TXD) Delay time, TX_CLK high to TXD[3:0] valid 5 25 5 25 ns td(TX_CLK-TX_EN) Delay time, TX_CLK to TX_EN valid Figure 7-112. PRU-ICSS MII_TXD[3:0], MII_TXEN Timing 7.14.4 PRU-ICSS Universal Asynchronous Receiver Transmitter (PRU-ICSS UART) (1) U = UART baud time = 1/programmed baud rate. Table 7-111. Timing Requirements for PRU-ICSS UART Receive (see Figure 7-113) NO. MIN MAX UNIT 3 tw(RX) Pulse duration, receive start, stop, data bit 0.96U(1) 1.05U(1) ns (1) U = UART baud time = 1/programmed baud rate. Table 7-112. Switching Characteristics Over Recommended Operating Conditions for PRU-ICSS UART Transmit (see Figure 7-113) NO. PARAMETER MIN MAX UNIT 1 ƒbaud(baud) Maximum programmable baud rate 0 12 MHz 2 tw(TX) Pulse duration, transmit start, stop, data bit U – 2(1) U + 2(1) ns Figure 7-113. PRU-ICSS UART Timing |
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