wm8351 Wolfson Microelectronics plc, wm8351 Datasheet - Page 123
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wm8351
Manufacturer Part Number
wm8351
Description
Wolfson Audioplus? Stereo Codec With Power Management
Manufacturer
Wolfson Microelectronics plc
Datasheet
1.WM8351.pdf
(328 pages)
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Production Data
w
14.5.3
In Configuration Mode 11, the following general default settings apply:
The default voltages and the power-up sequence for all DC-DCs and LDOs in configuration mode 11
are shown below in Table 68 and Figure 68.
The time delay between each time slot is approximately 1.28ms.
Note that the Limit Switch is not enabled automatically in Configuration Mode 11; as a result, the
Limit Switch remains open when the WM8351 enters the ACTIVE state.
ON polarity
USB power source
Watchdog timer
Control Interface
32kHz oscillator
Real Time Clock
LDO1
Crystal detect
mode
PARAMETER
CONFIGURATION MODE 11
ON_POL = 1
USB_SLV_500MA = 1
WDOG_MODE [1:0] = 00
SPI_3WIRE = 0
SPI_4WIRE = 0
SPI_CFG = 0
OSC32K_ENA = 1
RTC_TICK_ENA = 1
RTC_CLKSRC = 0
LDO1_PIN_MODE = 0
LDO1_PIN_EN = 0
REGISTER SETTING
ON pin is Active Low
Selects 500mA limit in USB slave
Watchdog is disabled
Control Interface is 2-wire mode
32kHz Oscillator is enabled
Real Time Clock is enabled, driven
by the internal 32kHz oscillator
LDO1 controlled as normal via
register bits
Crystal detect mode is enabled.
(/RST output is held low until
32kHz oscillator is valid.)
DESCRIPTION
PD, June 2009, Rev 4.1
WM8351
123
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