wm8351 Wolfson Microelectronics plc, wm8351 Datasheet - Page 220

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

WM8351
REGISTER
w
ADDRESS
Control 2
R4 (04h)
System
BIT
5:4
15
14
13
12
11
10
9
7
USB_SUSPEND_8MA
USB_MSTR_500MA
WDOG_HIB_MODE
WDOG_MODE[1:0]
USB_SLV_500MA
USB_MSTR_SRC
USB_SUSPEND
USB_NOLIM
USB_MSTR
LABEL
DEFAULT
00
00
01
00
0
0
0
0
0
0
0
1
1
1
0
USB suspend mode with 8mA option
0 = USB is not suspended.
1 = USB is suspend with 8mA option enabled
The register bit defaults to 0, when a reset
happens or LINE<UVLO or the system fail on
boot due to the upper limit of the Hysteresis
Comp not been met.
Default held in metal mask.
Opens the USB switch
0 = USB enabled
1 = USB suspended
The register bit defaults to 0, when a reset
happens or LINE < UVLO or the system fail on
boot due to the upper limit of the Hysteresis
Comp not being met.
Default held in metal mask.
Set the chip to be a USB master
0 = Slave
1 = Master
The register bit defaults to 0, when a reset
happens or the USB state machine moves from
MASTER mode to SLAVE mode.
Reset by state machine. Default held in metal
mask.
Master mode source selector
0 = Master mode source is DCDC2
1 = Master mode source is LINE
Reset by state machine. Default held in metal
mask.
Set 500mA or 100mA mode when the USB
switch is in master mode
0 = 100mA
1 = 500mA
Reset by state machine. Default held in metal
mask.
USB current limiting
0 = Limit the USB current as per the settings.
1 = Don't limit USB current
Set 500mA or 100mA mode when the USB
switch is in slave mode
0 = 100mA
1 = 500mA
The register bit defaults to 0, when a reset
happens or LINE<UVLO or the system fail on
boot due to the upper limit of the Hysteresis
Comp not being met.
Reset by state machine. Default held in metal
mask.
Watchdog state in hibernate state
0 = WDOG disabled in Hibernate
1 = WDOG controlled by WDOG_MODE in
Hibernate
00 = Disabled
01 = SYS_WDOG_TO interrupt on time-out
10 = WKUP_WDOG_RST interrupt and System
reset on time-out
DESCRIPTION
PD, June 2009, Rev 4.1
REFER TO
Production Data
220