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WM8351 Datasheet(PDF) 284 Page - Wolfson Microelectronics plc |
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WM8351 Datasheet(HTML) 284 Page - Wolfson Microelectronics plc |
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284 / 330 page  WM8351 Production Data w PD, April 2012, Rev 4.5 284 REGISTER ADDRESS BIT LABEL DEFAULT DESCRIPTION REFER TO R168 (A8h) Battery Charger Control 1 15 CHG_ENA 1 CHG_ENA bit selects battery charger current control 0 = Set battery charger current to zero 1 = Enable battery charge control Protected by security key. Reset by state machine. Default held in metal mask. 12:10 CHG_EOC_SEL[2:0] 000 Selects what the end of charge current should be set to 000 = 20mA 001 = 30mA (10mA steps) ... 111 = 90mA Protected by security key. 9 CHG_TRICKLE_TEMP_CHOKE 0 Enable trickle charge temperature choking 0 = disable 1 = enable Protected by security key. Reset by state machine. 8 CHG_TRICKLE_USB_CHOKE 0 Enable USB current choking in trickle charge 0 = disable 1 = enable Protected by security key. Reset by state machine. 7 CHG_RECOVER_T 0 Time constant adjust for charger choke recovery (step-up): 0 = Step-up time constant is 180us (allows faster recovery between processor wakeups) 1 = Step-up time constant is >20ms (outside audio band) Protected by security key. Reset by state machine. 6 CHG_END_ACT 0 Action to take when charging ends: 0 = Set charge current to 0 1 = Do nothing (leave charger on till timeout) Protected by security key. Reset by state machine. 5 CHG_FAST 0 Enable fast charging. 0 = Fast charging cannot take place. 1 = Enable fast charging (will not start until valid charging conditions are met). Note: This register is held low and can only be written to once the fast charge ready signal has gone high. Protected by security key. Reset by state machine. Default held in metal mask. 4 CHG_FAST_USB_THROTTLE 0 Enable USB current throttling in fast charge: 0 = Don't do any current throttling when fast charging. 1 = Do current throttle while fast charging. |
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