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WM8352 Datasheet(PDF) 307 Page - Wolfson Microelectronics plc |
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WM8352 Datasheet(HTML) 307 Page - Wolfson Microelectronics plc |
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307 / 336 page  Production Data WM8352 w PD, February 2011, Rev 4.4 307 REGISTER ADDRESS BIT LABEL DEFAULT DESCRIPTION REFER TO 0 0000 = 0.9V Register CAh LDO1 Low Power REGISTER ADDRESS BIT LABEL DEFAULT DESCRIPTION REFER TO R203 (CBh) LDO2 Control 14 LDO2_SWI 0 LDO2 Regulator mode 0 = LDO voltage regulator 1 = Current-limited switch (no voltage regulation, LDO2_VSEL has no effect) Reset by state machine. Default held in metal mask. 10 LDO2_OPFLT 0 Enable discharge of LDO2 outputs when LDO2 is disabled 0 = Enabled - Output to be discharged 1 = Disabled - Output is left floating Note - if LDO Regulators 1, 2, 3 and 4 are all disabled, then the outputs will all be discharged, regardless of the LDOn_OPFLT bit. 4:0 LDO2_VSEL[4:0] 1_1011 1_1010 0_0110 1_0111 LDO2 Regulator output voltage (when LDO2_SWI=0) 1 1111 = 3.3V … (100mV steps) 1 0000 = 1.8V 0 1111 = 1.65V … (50mV steps) 0 0000 = 0.9V Reset by state machine. Default held in metal mask. Register CBh LDO2 Control REGISTER ADDRESS BIT LABEL DEFAULT DESCRIPTION REFER TO R204 (CCh) LDO2 Timeouts 15:14 LDO2_ERRACT[1:0] 00 Action to take on LDO2 fault (as well as generating an interrupt): 00 = ignore 01 = shut down regulator 10 = shut down system 11 = reserved (shut down system) Reset by state machine. Default held in metal mask. 13:10 LDO2_ENSLOT[3:0] 0000 0000 0001 0100 Time slot for LDO2 start-up 0000 = Disabled (do not start up) 0001 = Start-up in time slot 1 … (total 14 slots available) 1110 = Start-up in time slot 14 1111 = Start up on entering ACTIVE Reset by state machine. Default held in metal mask. 9:6 LDO2_SDSLOT[3:0] 0000 Time slot for LDO2 shutdown. 0000 = Shut down on entering OFF 0001 = Shutdown in time slot 1 …. (total 14 slots available) 1110 = Shutdown in time slot 14 1111 = Shut down on entering OFF Register CCh LDO2 Timeouts |
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