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USB3370 数据表(PDF) 54 Page - Microchip Technology |
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USB3370 数据表(HTML) 54 Page - Microchip Technology |
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54 / 75 page  USB3370 DS00001915B-page 54 2012 - 2015 Microchip Technology Inc. 7.1.1.8 USB Interrupt Enable Rising Address = 0D-0Fh (read), 0Dh (write), 0Eh (set), 0Fh (clear) 7.1.1.9 USB Interrupt Enable Falling Address = 10-12h (read), 10h (write), 11h (set), 12h (clear) DischrgVbus 3 rd/w/s/c 0b This bit is only used during SRP. Connects a resistor from VBUS to ground to discharge VBUS. 0b: disconnect resistor from VBUS to ground 1b: connect resistor from VBUS to ground ChrgVbus 4 rd/w/s/c 0b This bit is only used during SRP. Connects a resistor from VBUS to VDD33 to charge VBUS above the SessValid threshold. 0b: disconnect resistor from VBUS to VDD33 1b: connect resistor from VBUS to VDD33 DrvVbus 5 rd/w/s/c 0b Enables external 5 volt supply to drive 5 volts on VBUS. This signal is or’ed with DrvVbusExternal. 0b: Do not drive Vbus, CPEN_N tri-stated. 1b: Drive Vbus, CPEN_N driven low. DrvVbusExternal 6 rd/w/s/c 0b Enables external 5 volt supply to drive 5 volts on VBUS. This signal is or’ed with DrvVbus. 0b: Do not drive Vbus, CPEN_N tri-stated. 1b: Drive Vbus, CPEN_N driven low. UseExternalVbus Indicator 7 rd/w/s/c 0b Tells the PHY to use an external VBUS over-current or voltage indicator. This function is detailed in Section 5.7.2. 0b: Use the internal VbusValid comparator 1b: Use the EXTVBUS input as for VbusValid signal. Field Name Bit Access Default Description HostDisconnect Rise 0 rd/w/s/c 1b Generate an interrupt event notification when Hostdisconnect changes from low to high. Applicable only in host mode. VbusValid Rise 1 rd/w/s/c 1b Generate an interrupt event notification when Vbusvalid changes from low to high. SessValid Rise 2 rd/w/s/c 1b Generate an interrupt event notification when SessValid changes from low to high. SessEnd Rise 3 rd/w/s/c 1b Generate an interrupt event notification when SessEnd changes from low to high. IdGnd Rise 4 rd/w/s/c 1b Generate an interrupt event notification when IdGnd changes from low to high. Reserved 7:5 rd 0h Read only, 0. Field Name Bit Access Default Description HostDisconnect Fall 0 rd/w/s/c 1b Generate an interrupt event notification when Hostdisconnect changes from high to low. Applicable only in host mode. VbusValid Fall 1 rd/w/s/c 1b Generate an interrupt event notification when Vbusvalid changes from high to low. SessValid Fall 2 rd/w/s/c 1b Generate an interrupt event notification when SessValid changes from high to low. SessEnd Fall 3 rd/w/s/c 1b Generate an interrupt event notification when SessEnd changes from high to low. Field Name Bit Access Default Description |
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