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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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TPS65982ABZBHR датащи(PDF) 54 Page - Texas Instruments |
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TPS65982ABZBHR датащи(HTML) 54 Page - Texas Instruments |
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54 / 121 page  54 TPS65982 SLVSD02D – MARCH 2015 – REVISED JUNE 2019 www.ti.com Product Folder Links: TPS65982 Submit Documentation Feedback Copyright © 2015–2019, Texas Instruments Incorporated 9.3.4.1 USB Top and Bottom Ports The Top (C_USB_TP and C_USB_TN) and Bottom (C_USB_BP and C_USB_BN) ports that correspond to the Type-C top and bottom USB D+/D– pairs are swapped based on the detected cable orientation. The symmetric pin order shown in Figure 43 from the A-side to the B-side allows the pins to connect to equivalent pins on the opposite side when the cable orientation is reversed. 9.3.4.2 Multiplexer Connection Orientation Table 4 shows the multiplexer connection orientation. For the USB D+/D– pair top and bottom port connections, these connections are fixed. For the SBU port connections, the SBU crossbar multiplexer enables flipping of the signal pair and the connections shown are for the upside-up orientation. The CORE_UARTn connections come from a digital crossbar multiplexer that allows the UART_RX/TX, LSX_P2R/R2P, and GPIO0/1 to be mapped to any of the 1st stage multiplexers. Table 4. Data Multiplexer Connections SYSTEM PIN USB TOP PIN USB BOTTOM PIN SBU MULTIPLEXER PIN USB_RP_P C_USB_TP C_USB_BP USB_RP_N C_USB_TN C_USB_BN USB_EP_P C_USB_TP C_USB_BP USB_EP_N C_USB_TN C_USB_BN SWD_CLK C_USB_TP C_USB_BP SBU1 SWD_DATA C_USB_TN C_USB_BN SBU2 DEBUG1 C_USB_TP C_USB_BP SBU1 DEBUG2 C_USB_TN C_USB_BN SBU2 DEBUG3 C_USB_TP C_USB_BP SBU1 DEBUG4 C_USB_TN C_USB_BN SBU2 AUX_P C_USB_TP C_USB_BP SBU1 AUX_N C_USB_TN C_USB_BN SBU2 LSX_R2P SBU1 LSX_P2R SBU2 CORE_UART0_TX C_USB_TP CORE_UART0_RX C_USB_TN CORE_UART1_TX C_USB_BP CORE_UART1_RX C_USB_BN CORE_UART2_TX SBU1 CORE_UART2_RX SBU2 9.3.4.3 Digital Crossbar Multiplexer The TPS65982 UART paths (UART_RX/TX and LSX_P2R/R2P) and GPIO0/1 all have digital inputs that pass through a cross-bar multiplexer inside the digital core. Each of these pins is configurable as an input or output of the cross-bar multiplexer. The digital cross-bar multiplexer then connects to the port data multiplexers as shown in Figure 44. The connections are configurable via firmware. The default state at power-up is to connect a buffered version of UART_RX to UART_TX providing a bypass through the TPS65982 for daisy chaining during power on reset. 9.3.4.4 SBU Crossbar Multiplexer The SBU Crossbar Multiplexer provides pins (C_SBU1 and C_SBU2) for future USB functionality as well as Alternate Modes. The multiplexer swaps the output pair orientation based on the cable orientation. For more information on Alternate Modes, refer to the USB PD Specification. |
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