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TUSB1210 датащи(PDF) 21 Page - Texas Instruments |
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TUSB1210 датащи(HTML) 21 Page - Texas Instruments |
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21 / 66 page ![]() TUSB1210 www.ti.com SLLSE09H – NOVEMBER 2009 – REVISED JUNE 2015 5.3.1.3.6 UART Transceiver In this mode, the ULPI data bus is redefined as a 2-pin UART interface, which exchanges data through a direct access to the FS/LS analog transmitter and receiver. Table 5-11. USB UART Interface Timing Parameters PARAMETER MIN MAX UNIT tPH_DP_CON Phone D+ connect time 100 ms tPH_DISC_DET Phone D+ disconnect time 150 ms fUART_DFLT Default UART signaling rate (typical rate) 9600 bps Figure 5-1. USB UART Data Flow Table 5-12. CEA-2011/UART Transceiver PARAMETER COMMENTS MIN TYP MAX UNIT UART Transmitter CEA-2011 tPH_UART_EDGE Phone UART edge rates DP_PULLDOWN asserted 1 Μs VOH_SER Serial interface output high ISOURCE = 4 mA 2.4 3.3 3.6 V VOL_SER Serial interface output low ISINK = –4 mA 0 0.1 0.4 V UART Receiver CEA-2011 VIH_SER Serial interface input high DP_PULLDOWN asserted 2 V VIL_SER Serial interface input low DP_PULLDOWN asserted 0.8 V VTH Switching threshold 0.8 2 V Copyright © 2009–2015, Texas Instruments Incorporated Detailed Description 21 Submit Documentation Feedback Product Folder Links: TUSB1210 |
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