WM8351CGEB/RV WOLFSON [Wolfson Microelectronics plc], WM8351CGEB/RV Datasheet - Page 301

• Manufacturer Part Number: WM8351CGEB/RV
• Manufacturer: WOLFSON [Wolfson Microelectronics plc]

Production Data
Register C8h LDO1 Control
REGISTER
Register C9h LDO1 Timeouts
w
REGISTER
ADDRESS
ADDRESS
R201 (C9h)
R200 (C8h)
Timeouts
Control
LDO1
LDO1
15:14
13:10
BIT
BIT
4:0
9:6
14
10
LDO1_VSEL[4:0]
LDO1_ERRACT[1:0]
LDO1_ENSLOT[3:0]
LDO1_SDSLOT[3:0]
LDO1_OPFLT
LDO1_SWI
LABEL
LABEL
DEFAULT
1_1100
0_0110
1_1100
0_0110
DEFAULT
0
0
0000
0000
0001
0011
0000
00
LDO1 Regulator mode
0 = LDO voltage regulator
1 = Current-limited switch (no voltage regulation,
LDO1_VSEL has no effect)
Reset by state machine. Default held in metal mask.
Enable discharge of LDO1 outputs when LDO1 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.
LDO1 Regulator output voltage (when LDO1_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.
Action to take on LDO1 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.
Time slot for LDO1 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.
Time slot for LDO1 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
DESCRIPTION
DESCRIPTION
PD, April 2012, Rev 4.5
REFER TO
REFER TO
WM8351
301