wm8350 Wolfson Microelectronics plc, wm8350 Datasheet - Page 298

• Manufacturer Part Number: wm8350
• Description: Wolfson Audioplus? Stereo Codec With Power Management
• Manufacturer: Wolfson Microelectronics plc

WM8350
Register B3h Power-check comparator
Register B4h DCDC1 Control
w
REGISTER
REGISTER
REGISTER
ADDRESS
ADDRESS
ADDRESS
R180 (B4h)
R181 (B5h)
Timeouts
DCDC1
DCDC1
Control
BIT
15:14
13:10
15:14
BIT
BIT
6:0
11
10
DC1_ERRACT[1:0]
DC1_ENSLOT[3:0]
DC1_VSEL[6:0]
DC1_CAP[1:0]
DC1_DISOVP
DC1_OPFLT
LABEL
LABEL
LABEL
DEFAULT
000_1110
000_0110
001_0010
110_0010
DEFAULT
00
0
0
0000
0100
0001
0010
DEFAULT
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
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.
Protected by security key. Default held in metal
mask.
DESCRIPTION
DESCRIPTION
DESCRIPTION
PD, June 2009, Rev 4.1
REFER TO
REFER TO
REFER TO
Production Data
298