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USB2533 数据表(PDF) 19 Page - Microchip Technology |
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USB2533 数据表(HTML) 19 Page - Microchip Technology |
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19 / 50 page ![]() USB 2.0 Hi-Speed 3-Port Hub Controller Datasheet 2014 Microchip Technology Inc. DS00001702A-page 19 be performed through the SMBus interface, or permanently via OTP. Refer to the Protouch MPT User Manual for additional information. Note 3.3 If using the local power detect function (LOCAL_PWR pin), the NON_REM[1:0] configuration straps cannot be used to configure the non-removable state of the USB ports. In this case, the non-removable state of the ports must be configured in internal device registers via the Protouch tool or SMBus. Note 3.4 Configuration strap values are latched on Power-On Reset (POR) and the rising edge of RESET_N (external chip reset). Configuration straps are identified by an underlined symbol name. Signals that function as configuration straps must be augmented with an external resistor when connected to a load. Refer to Section 6.3, "Device Configuration Straps," on page 28 for additional information. 3.2 Pin Assignments Table 3.2 36-SQFN Package Pin Assignments PIN NUM PIN NAME PIN NUM PIN NAME 1 SWAP_USBDN1_DM/PRT_DIS_M1 19 UART_RX/OCS3_N 2 SWAP_USBDN1_DP/PRT_DIS_P1 20 NC 3 USBDN2_DM/PRT_DIS_M2 21 UART_TX/ 4 USBDN2_DP/PRT_DIS_P2 22 SDA/SMBDATA/NON_REM1 5 NC 23 VDD33 6 USBDN3_DM/PRT_DIS_M3 24 SCL/SMBCLK/CFG_SEL0 7 USBDN3_DP/PRT_DIS_P3 25 HS_IND/CFG_SEL1 8 NC 26 RESET_N 9 NC 27 VBUS_DET 10 VDDA33 28 SUSP_IND/LOCAL_PWR/NON_REM0 11 LED0 29 VDDA33 12 PRTPWR1/PRTCTL1/BC_EN1 30 FLEX_USBUP_DM 13 OCS1_N 31 FLEX_USBUP_DP 14 VDDCR12 32 XTAL2 15 VDD33 33 XTAL1/REFCLK 16 PRTPWR2/PRTCTL2/BC_EN2 34 NC 17 OCS2_N 35 RBIAS 18 PRTPWR3/PRTCTL3/BC_EN3 36 VDDA33 |
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