wm8351 Wolfson Microelectronics plc, wm8351 Datasheet - Page 292

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

WM8351
Register B4h DCDC1 Control
Register B5h DCDC1 Timeouts
w
REGISTER
REGISTER
ADDRESS
ADDRESS
R180 (B4h)
R181 (B5h)
Timeouts
DCDC1
DCDC1
Control
15:14
13:10
15:14
BIT
BIT
9:6
6:0
11
10
DC1_ERRACT[1:0]
DC1_ENSLOT[3:0]
DC1_SDSLOT[3:0]
DC1_VSEL[6:0]
DC1_CAP[1:0]
DC1_DISOVP
DC1_OPFLT
LABEL
LABEL
DEFAULT
000_1110
000_1110
001_1010
000_1110
DEFAULT
00
0
0
0000
0011
0010
0001
0000
00
DC-DC1 Output Capacitor
00 = 10uF, 30uF, 45uF
01 = 60uF, 85uF
10 = Not used
11 = 100uF
Reset by state machine.
Over voltage Protection
0 = enabled
1 = disabled
Reset by state machine. Default held in metal mask.
Enable discharge of DC-DC1 outputs when DC-DC1
is disabled
0 = Enabled - Output to be discharged
1 = Disabled - Output is left floating
DC-DC1 Converter output voltage settings in 25mV
steps.
Maximum output = 3.4V.
110 0110 = 3.4V
110 0010 = 3.3V
101 0110 = 3.0V
100 1110 = 2.8V
……
010 0110 = 1.8V
000 1110 = 1.2V
000 0110 = 1.0V
000 0000 = 0.85V
Reset by state machine. Default held in metal mask.
Time slot for DC-DC1 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.
Action to take on DC-DC1 fault (as well as
generating an interrupt):
00 = ignore
01 = shut down converter
10 = shut down system
11 = reserved (shut down system)
Reset by state machine. Default held in metal
mask.
Time slot for DC-DC1 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, June 2009, Rev 4.1
REFER TO
REFER TO
Production Data
292