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WM8311 Datasheet(PDF) 278 Page - Wolfson Microelectronics plc |
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WM8311 Datasheet(HTML) 278 Page - Wolfson Microelectronics plc |
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278 / 302 page  WM8311 Pre-Production w PP, May 2012, Rev 3.1 278 REGISTER ADDRESS BIT LABEL DEFAULT DESCRIPTION REFER TO R30745 (7819h) LDO11/EPE Control 15:13 LDO11_ON_SL OT [2:0] 000 LDO11 ON Slot select 000 = Do not enable 001 = Enable in Timeslot 1 010 = Enable in Timeslot 2 011 = Enable in Timeslot 3 100 = Enable in Timeslot 4 101 = Enable in Timeslot 5 110 = Controlled by Hardware Enable 1 111 = Controlled by Hardware Enable 2 11:8 LDO11_ON_V SEL [3:0] 0000 LDO11 ON Voltage select 0.80V to 1.55V in 50mV steps 0h = 0.80V 1h = 0.85V 2h = 0.90V … Eh = 1.50V Fh = 1.55V 7:5 EPE2_ON_SL OT [2:0] 000 EPE2 ON Slot select 000 = Do not enable 001 = Enable in Timeslot 1 010 = Enable in Timeslot 2 011 = Enable in Timeslot 3 100 = Enable in Timeslot 4 101 = Enable in Timeslot 5 110 = Controlled by Hardware Enable 1 111 = Controlled by Hardware Enable 2 4:2 EPE1_ON_SL OT [2:0] 000 EPE1 ON Slot select 000 = Do not enable 001 = Enable in Timeslot 1 010 = Enable in Timeslot 2 011 = Enable in Timeslot 3 100 = Enable in Timeslot 4 101 = Enable in Timeslot 5 110 = Controlled by Hardware Enable 1 111 = Controlled by Hardware Enable 2 1:0 USB100MA_S TARTUP [1:0] 00 Sets the device behaviour when starting up under USB power, when USB_ILIM = 010b (100mA) 00 = Normal 01 = Soft-Start 10 = Only start if BATTVDD > 3.1V 11 = Only start if BATTVDD > 3.4V In the 1X modes, if the battery voltage is less than the selected threshold, then the device will enable trickle charge mode instead of executing the start-up request. The start-up request is delayed until the battery voltage threshold has been met. Register 7819h LDO11/EPE Control |
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