wm8351 Wolfson Microelectronics plc, wm8351 Datasheet - Page 305

• Manufacturer Part Number: wm8351
• Description: Wolfson Audioplus? Stereo Codec With Power Management
• Manufacturer: Wolfson Microelectronics plc

Production Data
Register D2h LDO4 Timeouts
REGISTER
Register D3h LDO4 Low Power
w
REGISTER
ADDRESS
ADDRESS
R210 (D2h)
R211 (D3h)
LDO4 Low
Timeouts
Power
LDO4
13:12
15:14
13:10
BIT
BIT
9:8
4:0
9:6
LDO4_HIB_MODE[1:0]
LDO4_ERRACT[1:0]
LDO4_ENSLOT[3:0]
LDO4_SDSLOT[3:0]
LDO4_HIB_TRIG[1:0]
LDO4_VIMG[4:0]
LABEL
LABEL
DEFAULT
DEFAULT
0000
0010
0000
0100
0000
1_1100
00
00
00
Action to take on LDO4 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 LDO4 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 LDO4 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
LDO4 Hibernate behaviour:
00 = Select voltage image settings
01 = disable output
10 = reserved
11 = reserved
Reset by state machine. Default held in metal
mask.
LDO4 Hibernate signal select
00 = Hibernate register bit
01 = L_PWR1
10 = L_PWR2
11 = L_PWR3
Reset by state machine. Default held in metal
mask.
LDO4 Regulator output image voltage
1 1111 = 3.3V
… (100mV steps)
1 0000 = 1.8V
0 1111 = 1.65V
… (50mV steps)
0 0000 = 0.9V
DESCRIPTION
DESCRIPTION
PD, June 2009, Rev 4.1
REFER TO
REFER TO
WM8351
305