wm8350 Wolfson Microelectronics plc, wm8350 Datasheet - Page 300

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

WM8350
Register B7h DCDC2 Control
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REGISTER
ADDRESS
R183 (B7h)
DCDC2
Control
BIT
9:8
1:0
14
12
6
4
3
DC2_HIB_TRIG[1:0]
DC2_FBSRC[1:0]
DC2_HIB_MODE
DC2_MODE
DC2_RMPH
DC2_RMPL
DC2_ILIM
LABEL
DEFAULT
00
00
0
0
0
1
1
DC-DC2 Converter Mode
0 = Boost mode
1 = Switch mode
Reset by state machine.
DC-DC2 Hibernate behaviour:
0 = Continue as in Active state
1 = Disable converter output
Reset by state machine.
DC-DC2 Hibernate signal select
00 = HIBERNATE register bit
01 = L_PWR1
10 = L_PWR2
11 = L_PWR3
Note that Hibernate is also selected when a GPIO
Hibernate input is asserted.
Reset by state machine.
DC-DC2 peak current limit select
0 = Higher peak current
1 = Lower peak current
Reset by state machine. Default held in metal
mask.
DC-DC2 compensation ramp
{DC2_RMPH, DC2_RMPL}
00 = 20V < VOUT ≤ 30V
01 = 10V < VOUT ≤ 20V
10 = 5V < VOUT ≤ 10V
11 = VOUT ≤ 5V (will be chosen automatically if
DC2_FBSRC=11)
Reset by state machine. Default held in metal
mask.
DC-DC2 compensation ramp
{DC2_RMPH, DC2_RMPL}
00 = 20V < VOUT ≤ 30V
01 = 10V < VOUT ≤ 20V
10 = 5V < VOUT ≤ 10V
11 = VOUT ≤ 5V (will be chosen automatically if
DC2_FBSRC=11)
Reset by state machine. Default held in metal
mask.
DC-DC2 voltage feedback selection
00 = voltage feedback (using external resistor
divider on pin FB2)
01 = current sink ISINKA used as feedback
10 = current sink ISINKB used as feedback
11 = voltage feedback (using internal resistor
divider on pin USB)
Reset by state machine. Default held in metal
mask.
DESCRIPTION
PD, June 2009, Rev 4.1
REFER TO
Production Data
300